The Gemini Interactions API allows developers to build generative AI applications using Gemini models. Gemini is our most capable model, built from the ground up to be multimodal. It can generalize and seamlessly understand, operate across, and combine different types of information including language, images, audio, video, and code. You can use the Gemini API for use cases like reasoning across text and images, content generation, dialogue agents, summarization and classification systems, and more.
Creating an interaction
Creates a new interaction.
Request body
The request body contains data with the following structure:
model ModelOption (optional)
The name of the `Model` used for generating the interaction.
Required if `agent` is not provided.
Possible values
-
models/gemini-2.5-flash-liteOur smallest and most cost effective model, built for at scale usage.
-
models/gemini-2.5-flash-imageOur native image generation model, optimized for speed, flexibility, and contextual understanding. Text input and output is priced the same as 2.5 Flash.
-
models/gemini-3.1-flash-liteOur most cost-efficient model, optimized for high-volume agentic tasks, translation, and simple data processing.
-
models/gemini-3.1-flash-imagePro-level visual intelligence with Flash-speed efficiency and reality-grounded generation capabilities.
-
models/gemini-3.5-flashOur most intelligent model for sustained frontier performance in agentic and coding tasks.
-
models/gemini-3.6-flashOur most intelligent model for sustained frontier performance in agentic and coding tasks.
-
models/gemini-3.7-flashOur most intelligent model for sustained frontier performance in agentic and coding tasks.
agent AgentOption (optional)
The name of the `Agent` used for generating the interaction.
Required if `model` is not provided.
Possible values
-
deep-research-pro-preview-12-2025Gemini Deep Research Agent
-
deep-research-preview-04-2026Gemini Deep Research Agent
-
deep-research-max-preview-04-2026Gemini Deep Research Max Agent
-
antigravity-preview-05-2026Use the Antigravity managed agent to perform multi-step tasks that require reasoning, file operations, and tool use.
The inputs for the interaction (common to both Model and Agent).
generation_config GenerationConfig (optional)
Model Configuration
Configuration parameters for the model interaction.
Alternative to `agent_config`. Only applicable when `model` is set.
Fields
The tool choice configuration.
Possible values:
-
autoAuto tool choice.
-
anyAny tool choice.
-
noneNo tool choice.
-
validatedValidated tool choice.
Seed used in decoding for reproducibility.
A list of character sequences that will stop output interaction.
thinking_level ThinkingLevel (optional)
The level of thought tokens that the model should generate.
Possible values
-
minimalLittle to no thinking.
-
lowLow thinking level.
-
mediumMedium thinking level.
-
highHigh thinking level.
thinking_summaries ThinkingSummaries (optional)
Whether to include thought summaries in the response.
Possible values
-
autoAuto thinking summaries.
-
noneNo thinking summaries.
The maximum number of tokens to include in the response.
video_config VideoConfig (optional)
Configuration for video generation.
Fields
Optional task mode for video generation. If not specified, the model automatically determines the appropriate mode based on the provided text prompt and input media.
Possible values:
-
text_to_videoGenerates video solely from a text prompt.
-
image_to_videoGenerates video from one or two source images. The first image defines the starting frame, and the optional second image defines the ending frame.
-
reference_to_videoGenerates video using reference media (such as images, audio, or video).
-
editModifies an existing input video.
-
extendExtends an existing input video.
agent_config DynamicAgentConfig (optional)
Agent Configuration
Configuration for the agent.
Alternative to `generation_config`. Only applicable when `agent` is set.
Fields
No description provided.
Always set to "dynamic".
Enforces that the generated response is a JSON object that complies with the JSON schema specified in this field.
System instruction for the interaction.
A list of tool declarations the model may call during interaction.
The ID of the previous interaction, if any.
service_tier ServiceTier (optional)
The service tier for the interaction.
Possible values
-
flexFlex service tier.
-
standardStandard service tier.
-
priorityPriority service tier.
safety_settings array (SafetySetting) (optional)
Safety settings for the interaction.
Fields
type HarmCategory (required)
Required. The type of harm category to be blocked.
Possible values
-
hate_speechContent that promotes violence or incites hatred against individuals or groups based on certain attributes.
-
dangerous_contentContent that promotes, facilitates, or enables dangerous activities.
-
harassmentAbusive, threatening, or content intended to bully, torment, or ridicule.
-
sexually_explicitContent that contains sexually explicit material.
-
jailbreakPrompts designed to bypass safety filters.
Required. The threshold for blocking content. If the harm probability exceeds this threshold, the content will be blocked.
Possible values:
-
block_low_and_aboveBlock content with a low harm probability or higher.
-
block_medium_and_aboveBlock content with a medium harm probability or higher.
-
block_only_highBlock content with a high harm probability.
-
offTurn off the safety filter entirely.
Optional. The method for blocking content. If not specified, the default behavior is to use the probability score.
Possible values:
-
severityThe harm block method uses both probability and severity scores.
-
probabilityThe harm block method uses the probability score.
Input only. Whether the interaction will be streamed.
Input only. Whether to store the response and request for later retrieval.
Input only. Whether to run the model interaction in the background.
Response
Returns an Interaction resource.
Simple Request
Example Response
{ "created": "2025-11-26T12:25:15Z", "id": "v1_ChdPU0F4YWFtNkFwS2kxZThQZ05lbXdROBIXT1NBeGFhbTZBcEtpMWU4UGdOZW13UTg", "model": "gemini-3.6-flash", "object": "interaction", "status": "completed", "steps": [ { "type": "model_output", "content": [ { "type": "text", "text": "Hello! I'm functioning perfectly and ready to assist you.\n\nHow are you doing today?" } ] } ], "updated": "2025-11-26T12:25:15Z", "usage": { "input_tokens_by_modality": [ { "modality": "text", "tokens": 7 } ], "total_cached_tokens": 0, "total_input_tokens": 7, "total_output_tokens": 20, "total_thought_tokens": 22, "total_tokens": 49, "total_tool_use_tokens": 0 } }
Multi-turn
Example Response
{ "created": "2025-11-26T12:22:47Z", "id": "v1_ChdPU0F4YWFtNkFwS2kxZThQZ05lbXdROBIXT1NBeGFhbTZBcEtpMWU4UGdOZW13UTg", "model": "gemini-3.6-flash", "object": "interaction", "status": "completed", "steps": [ { "type": "model_output", "content": [ { "type": "text", "text": "The capital of France is Paris." } ] } ], "updated": "2025-11-26T12:22:47Z", "usage": { "input_tokens_by_modality": [ { "modality": "text", "tokens": 50 } ], "total_cached_tokens": 0, "total_input_tokens": 50, "total_output_tokens": 10, "total_thought_tokens": 0, "total_tokens": 60, "total_tool_use_tokens": 0 } }
Image Input
Example Response
{ "created": "2025-11-26T12:22:47Z", "id": "v1_ChdPU0F4YWFtNkFwS2kxZThQZ05lbXdROBIXT1NBeGFhbTZBcEtpMWU4UGdOZW13UTg", "model": "gemini-3.6-flash", "object": "interaction", "status": "completed", "steps": [ { "type": "model_output", "content": [ { "type": "text", "text": "A white humanoid robot with glowing blue eyes stands holding a red skateboard." } ] } ], "updated": "2025-11-26T12:22:47Z", "usage": { "input_tokens_by_modality": [ { "modality": "text", "tokens": 10 }, { "modality": "image", "tokens": 258 } ], "total_cached_tokens": 0, "total_input_tokens": 268, "total_output_tokens": 20, "total_thought_tokens": 0, "total_tokens": 288, "total_tool_use_tokens": 0 } }
Function Calling
Example Response
{ "created": "2025-11-26T12:22:47Z", "id": "v1_ChdPU0F4YWFtNkFwS2kxZThQZ05lbXdROBIXT1NBeGFhbTZBcEtpMWU4UGdOZW13UTg", "model": "gemini-3.6-flash", "object": "interaction", "status": "requires_action", "steps": [ { "name": "get_weather", "type": "function_call", "arguments": { "location": "Boston, MA" }, "id": "gth23981" } ], "updated": "2025-11-26T12:22:47Z", "usage": { "input_tokens_by_modality": [ { "modality": "text", "tokens": 100 } ], "total_cached_tokens": 0, "total_input_tokens": 100, "total_output_tokens": 25, "total_thought_tokens": 0, "total_tokens": 125, "total_tool_use_tokens": 50 } }
Deep Research
Antigravity
Reuse Env
With Sources
Custom Agent
Canceling an interaction
Cancels an interaction by id. This only applies to background interactions that are still running.
Path / Query Parameters
API version for request routing.
The unique identifier of the interaction to cancel.
Response
Returns an Interaction resource.
Cancel Interaction
Example Response
{ "created": "2025-11-26T12:25:15Z", "id": "v1_ChdPU0F4YWFtNkFwS2kxZThQZ05lbXdROBIXT1NBeGFhbTZBcEtpMWU4UGdOZW13UTg", "model": "gemini-3.6-flash", "object": "interaction", "status": "cancelled", "updated": "2025-11-26T12:25:15Z" }
Retrieving an interaction
Retrieves the full details of a single interaction based on its `Interaction.id`.
Path / Query Parameters
API version for request routing.
The unique identifier of the interaction to retrieve.
Optional. If set, resumes the interaction stream from the next chunk after the event marked by the event id. Can only be used if `stream` is true.
If set to true, the generated content will be streamed incrementally.
Defaults to: False
Response
Returns an Interaction resource.
Get Interaction
Example Response
{ "created": "2025-11-26T12:25:15Z", "id": "v1_ChdPU0F4YWFtNkFwS2kxZThQZ05lbXdROBIXT1NBeGFhbTZBcEtpMWU4UGdOZW13UTg", "model": "gemini-3.6-flash", "object": "interaction", "status": "completed", "steps": [ { "type": "model_output", "content": [ { "type": "text", "text": "I'm doing great, thank you for asking! How can I help you today?" } ] } ], "updated": "2025-11-26T12:25:15Z" }
Deleting an interaction
Deletes the interaction by id.
Path / Query Parameters
API version for request routing.
The unique identifier of the interaction to delete.
Required. The name of the interaction to delete.
Response
If successful, the response is empty.
Delete
Resources
Interaction
The Interaction resource.
Fields
Required. Output only. A unique identifier for the interaction completion.
Required. Output only. The status of the interaction.
Possible values:
-
in_progressThe interaction is in progress.
-
requires_actionThe interaction requires action/input from the user.
-
completedThe interaction is completed.
-
failedThe interaction failed.
-
cancelledThe interaction was cancelled.
-
incompleteThe interaction is completed, but contains incomplete results (e.g. hitting max_tokens).
Required. Output only. The time at which the response was created in ISO 8601 format (YYYY-MM-DDThh:mm:ssZ).
Required. Output only. The time at which the response was last updated in ISO 8601 format (YYYY-MM-DDThh:mm:ssZ).
Required. Output only. The steps that make up the interaction, when included in the response.
model ModelOption (optional)
The name of the `Model` used for generating the interaction.
Possible values
-
models/gemini-2.5-flash-liteOur smallest and most cost effective model, built for at scale usage.
-
models/gemini-2.5-flash-imageOur native image generation model, optimized for speed, flexibility, and contextual understanding. Text input and output is priced the same as 2.5 Flash.
-
models/gemini-3.1-flash-liteOur most cost-efficient model, optimized for high-volume agentic tasks, translation, and simple data processing.
-
models/gemini-3.1-flash-imagePro-level visual intelligence with Flash-speed efficiency and reality-grounded generation capabilities.
-
models/gemini-3.5-flashOur most intelligent model for sustained frontier performance in agentic and coding tasks.
-
models/gemini-3.6-flashOur most intelligent model for sustained frontier performance in agentic and coding tasks.
-
models/gemini-3.7-flashOur most intelligent model for sustained frontier performance in agentic and coding tasks.
The input for the interaction.
Enforces that the generated response is a JSON object that complies with the JSON schema specified in this field.
System instruction for the interaction.
A list of tool declarations the model may call during interaction.
usage Usage (optional)
Output only. Statistics on the interaction request's token usage.
Fields
Number of tokens in the prompt (context).
input_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of input token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens in the cached part of the prompt (the cached content).
cached_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of cached token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Total number of tokens across all the generated responses.
output_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of output token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens present in tool-use prompt(s).
tool_use_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of tool-use token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens of thoughts for thinking models.
Total token count for the interaction request (prompt + responses + other internal tokens).
grounding_tool_count array (GroundingToolCount) (optional)
Grounding tool count.
Fields
The grounding tool type associated with the count.
Possible values:
-
google_searchGrounding with Google Web Search and Image Search, & Web Grounding for Enterprise.
-
google_mapsGrounding with Google Maps.
The number of grounding tool counts.
The ID of the previous interaction, if any.
service_tier ServiceTier (optional)
The service tier for the interaction.
Possible values
-
flexFlex service tier.
-
standardStandard service tier.
-
priorityPriority service tier.
safety_settings array (SafetySetting) (optional)
Safety settings for the interaction.
Fields
type HarmCategory (required)
Required. The type of harm category to be blocked.
Possible values
-
hate_speechContent that promotes violence or incites hatred against individuals or groups based on certain attributes.
-
dangerous_contentContent that promotes, facilitates, or enables dangerous activities.
-
harassmentAbusive, threatening, or content intended to bully, torment, or ridicule.
-
sexually_explicitContent that contains sexually explicit material.
-
jailbreakPrompts designed to bypass safety filters.
Required. The threshold for blocking content. If the harm probability exceeds this threshold, the content will be blocked.
Possible values:
-
block_low_and_aboveBlock content with a low harm probability or higher.
-
block_medium_and_aboveBlock content with a medium harm probability or higher.
-
block_only_highBlock content with a high harm probability.
-
offTurn off the safety filter entirely.
Optional. The method for blocking content. If not specified, the default behavior is to use the probability score.
Possible values:
-
severityThe harm block method uses both probability and severity scores.
-
probabilityThe harm block method uses the probability score.
errors array (Error) (optional)
Output only. Diagnostic faults / platform errors recorded on the interaction.
Fields
A URI that identifies the error type.
A human-readable error message.
agent AgentOption (optional)
The name of the `Agent` used for generating the interaction.
Possible values
-
deep-research-pro-preview-12-2025Gemini Deep Research Agent
-
deep-research-preview-04-2026Gemini Deep Research Agent
-
deep-research-max-preview-04-2026Gemini Deep Research Max Agent
-
antigravity-preview-05-2026Use the Antigravity managed agent to perform multi-step tasks that require reasoning, file operations, and tool use.
agent_config DynamicAgentConfig (optional)
Configuration parameters for the agent interaction.
Fields
No description provided.
Always set to "dynamic".
Max total tokens for the agent run.
Examples
Example
{ "created": "2025-12-04T15:01:45Z", "id": "v1_ChdXS0l4YWZXTk9xbk0xZThQczhEcmlROBIXV0tJeGFmV05PcW5NMWU4UHM4RHJpUTg", "model": "gemini-3.6-flash", "object": "interaction", "status": "completed", "steps": [ { "type": "model_output", "content": [ { "type": "text", "text": "Hello! I'm doing well, functioning as expected. Thank you for asking! How are you doing today?" } ] } ], "updated": "2025-12-04T15:01:45Z", "usage": { "input_tokens_by_modality": [ { "modality": "text", "tokens": 7 } ], "total_cached_tokens": 0, "total_input_tokens": 7, "total_output_tokens": 23, "total_thought_tokens": 49, "total_tokens": 79, "total_tool_use_tokens": 0 } }
Data Models
Content
The content of the response.
Possible Types
AudioContent
An audio content block.
No description provided.
Always set to "audio".
The audio content.
The URI of the audio.
The number of audio channels.
The sample rate of the audio.
The mime type of the audio.
Possible values:
-
audio/wavWAV audio format
-
audio/mp3MP3 audio format
-
audio/aiffAIFF audio format
-
audio/aacAAC audio format
-
audio/oggOGG audio format
-
audio/flacFLAC audio format
-
audio/mpegMPEG audio format
-
audio/m4aM4A audio format
-
audio/l16L16 audio format
-
audio/opusOPUS audio format
-
audio/alawALAW audio format
-
audio/mulawMULAW audio format
-
audio/webmWEBM audio format
DocumentContent
A document content block.
No description provided.
Always set to "document".
The document content.
The URI of the document.
The mime type of the document.
Possible values:
-
application/pdfPDF document format
-
text/csvCSV document format
ImageContent
An image content block.
No description provided.
Always set to "image".
The image content.
The URI of the image.
resolution MediaResolution (optional)
The resolution of the media.
Possible values
-
lowLow resolution.
-
mediumMedium resolution.
-
highHigh resolution.
-
ultra_highUltra high resolution.
The mime type of the image.
Possible values:
-
image/pngPNG image format
-
image/jpegJPEG image format
-
image/webpWebP image format
-
image/heicHEIC image format
-
image/heifHEIF image format
-
image/gifGIF image format
-
image/bmpBMP image format
-
image/tiffTIFF image format
TextContent
A text content block.
Required. The text content.
No description provided.
Always set to "text".
annotations array (Annotation) (optional)
Citation information for model-generated content.
Possible Types
FileCitation
A file citation annotation.
No description provided.
Always set to "file_citation".
The URI of the file.
The name of the file.
Source attributed for a portion of the text.
User provided metadata about the retrieved context.
Page number of the cited document, if applicable.
Media ID in-case of image citations, if applicable.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
PlaceCitation
A place citation annotation.
No description provided.
Always set to "place_citation".
The ID of the place, in `places/{place_id}` format.
Title of the place.
URI reference of the place.
review_snippets array (ReviewSnippet) (optional)
Snippets of reviews that are used to generate answers about the features of a given place in Google Maps.
Fields
Title of the review.
A link that corresponds to the user review on Google Maps.
The ID of the review snippet.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
UrlCitation
A URL citation annotation.
No description provided.
Always set to "url_citation".
The URL.
The title of the URL.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
VideoContent
A video content block.
No description provided.
Always set to "video".
The video content.
The URI of the video.
processing MediaProcessing or enum (string) (optional)
How the model processes this video for understanding.
Can be a string ("static" | "agentic") or a StaticMediaProcessing object:
-
agentic: Model-driven dynamic navigation. -
static: Fixed-rate frame extraction. All frames placed in context. Can be passed as the string"static", or as an object with the following fields:type string (required)No description provided.
Always set to
"static".start_offset string (optional)Optional. Segment start time. Specified as a decimal number of seconds followed by an 's' suffix, e.g., "10.5s". Must be non-negative.
end_offset string (optional)Optional. Segment end time. Specified as a decimal number of seconds followed by an 's' suffix, e.g., "30s". Must be non-negative and greater than `start_offset` if `start_offset` is set.
fps number (optional)Optional. Video frame-rate sampling density.
resolution MediaResolution (optional)
The resolution of the media.
Possible values
-
lowLow resolution.
-
mediumMedium resolution.
-
highHigh resolution.
-
ultra_highUltra high resolution.
A user-defined name for this content block. Can be referenced by the model in the final response.
The mime type of the video.
Possible values:
-
video/mp4MP4 video format
-
video/mpegMPEG video format
-
video/mpgMPG video format
-
video/movMOV video format
-
video/aviAVI video format
-
video/x-flvFLV video format
-
video/webmWebM video format
-
video/wmvWMV video format
-
video/3gpp3GPP video format
-
video/jpeg2000JPEG 2000 video format
Examples
Audio
{ "type": "audio", "data": "BASE64_ENCODED_AUDIO", "mime_type": "audio/wav" }
Document
{ "type": "document", "data": "BASE64_ENCODED_DOCUMENT", "mime_type": "application/pdf" }
Image
{ "type": "image", "data": "BASE64_ENCODED_IMAGE", "mime_type": "image/png" }
Text
{ "type": "text", "text": "Hello, how are you?" }
VideoContent
No examples available for this type.
Tool
A tool that can be used by the model.
Possible Types
CodeExecution
A tool that can be used by the model to execute code.
No description provided.
Always set to "code_execution".
FileSearch
A tool that can be used by the model to search files.
No description provided.
Always set to "file_search".
The file search store names to search.
The number of semantic retrieval chunks to retrieve.
Metadata filter to apply to the semantic retrieval documents and chunks.
Function
A tool that can be used by the model.
No description provided.
Always set to "function".
The name of the function.
A description of the function.
The JSON Schema for the function's parameters. Supports a subset of JSON Schema. `minLength`, `maxLength`, `minProperties`, `maxProperties`, `uniqueItems`, `contains`, `minContains`, and `maxContains` are ignored and not enforced.
GoogleMaps
A tool that can be used by the model to call Google Maps.
No description provided.
Always set to "google_maps".
Whether to return a widget context token in the tool call result of the response.
The latitude of the user's location.
The longitude of the user's location.
GoogleSearch
A tool that can be used by the model to search Google.
No description provided.
Always set to "google_search".
The types of search grounding to enable.
Possible values:
-
web_searchSetting this field enables web search. Only text results are returned.
-
image_searchSetting this field enables image search. Image bytes are returned.
McpServer
A MCPServer is a server that can be called by the model to perform actions.
No description provided.
Always set to "mcp_server".
The full URL for the MCPServer endpoint. Example: "https://api.example.com/mcp"
The name of the MCPServer.
Optional: Fields for authentication headers, timeouts, etc., if needed.
allowed_tools array (AllowedTools) (optional)
The allowed tools.
Fields
The mode of the tool choice.
Possible values:
-
autoAuto tool choice.
-
anyAny tool choice.
-
noneNo tool choice.
-
validatedValidated tool choice.
The names of the allowed tools.
UrlContext
A tool that can be used by the model to fetch URL context.
No description provided.
Always set to "url_context".
Examples
CodeExecution
FileSearch
Function
GoogleMaps
GoogleSearch
McpServer
UrlContext
InteractionSseEvent
Possible Types
ErrorEvent
No description provided.
Always set to "error".
error Error (optional)
No description provided.
Fields
A URI that identifies the error type.
A human-readable error message.
The event_id token to be used to resume the interaction stream, from this event.
InteractionCompletedEvent
Signals that the Interaction completed. Sent when the Interaction receives Complete/Cancel or naturally terminates. No more input can be sent to the Interaction after this.
interaction InteractionSseEventInteraction (required)
Required. Partial completed interaction resource emitted at the end of the stream.
Fields
Required. Output only. A unique identifier for the interaction completion.
Required. Output only. The status of the interaction.
Possible values:
-
in_progressThe interaction is in progress.
-
requires_actionThe interaction requires action/input from the user.
-
completedThe interaction is completed.
-
failedThe interaction failed.
-
cancelledThe interaction was cancelled.
-
incompleteThe interaction is completed, but contains incomplete results (e.g. hitting max_tokens).
The model that will complete your prompt.
Output only. The time at which the response was created in ISO 8601 format.
Output only. The time at which the response was last updated in ISO 8601 format.
usage Usage (optional)
Output only. Statistics on the interaction request's token usage.
Fields
Number of tokens in the prompt (context).
input_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of input token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens in the cached part of the prompt (the cached content).
cached_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of cached token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Total number of tokens across all the generated responses.
output_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of output token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens present in tool-use prompt(s).
tool_use_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of tool-use token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens of thoughts for thinking models.
Total token count for the interaction request (prompt + responses + other internal tokens).
grounding_tool_count array (GroundingToolCount) (optional)
Grounding tool count.
Fields
The grounding tool type associated with the count.
Possible values:
-
google_searchGrounding with Google Web Search and Image Search, & Web Grounding for Enterprise.
-
google_mapsGrounding with Google Maps.
The number of grounding tool counts.
service_tier ServiceTier (optional)
The service tier for the interaction.
Possible values
-
flexFlex service tier.
-
standardStandard service tier.
-
priorityPriority service tier.
Output only. The steps that make up the interaction, if included in this event.
The agent to interact with.
Output only. The resource type.
No description provided.
Always set to "interaction.completed".
The event_id token to be used to resume the interaction stream, from this event.
InteractionCreatedEvent
Server response confirming that a new interaction was created.
interaction InteractionSseEventInteraction (required)
Required. Partial interaction resource emitted when the stream is created.
Fields
Required. Output only. A unique identifier for the interaction completion.
Required. Output only. The status of the interaction.
Possible values:
-
in_progressThe interaction is in progress.
-
requires_actionThe interaction requires action/input from the user.
-
completedThe interaction is completed.
-
failedThe interaction failed.
-
cancelledThe interaction was cancelled.
-
incompleteThe interaction is completed, but contains incomplete results (e.g. hitting max_tokens).
The model that will complete your prompt.
Output only. The time at which the response was created in ISO 8601 format.
Output only. The time at which the response was last updated in ISO 8601 format.
usage Usage (optional)
Output only. Statistics on the interaction request's token usage.
Fields
Number of tokens in the prompt (context).
input_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of input token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens in the cached part of the prompt (the cached content).
cached_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of cached token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Total number of tokens across all the generated responses.
output_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of output token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens present in tool-use prompt(s).
tool_use_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of tool-use token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens of thoughts for thinking models.
Total token count for the interaction request (prompt + responses + other internal tokens).
grounding_tool_count array (GroundingToolCount) (optional)
Grounding tool count.
Fields
The grounding tool type associated with the count.
Possible values:
-
google_searchGrounding with Google Web Search and Image Search, & Web Grounding for Enterprise.
-
google_mapsGrounding with Google Maps.
The number of grounding tool counts.
service_tier ServiceTier (optional)
The service tier for the interaction.
Possible values
-
flexFlex service tier.
-
standardStandard service tier.
-
priorityPriority service tier.
Output only. The steps that make up the interaction, if included in this event.
The agent to interact with.
Output only. The resource type.
No description provided.
Always set to "interaction.created".
The event_id token to be used to resume the interaction stream, from this event.
InteractionStatusUpdate
No description provided.
No description provided.
Possible values:
-
in_progressThe interaction is in progress.
-
requires_actionThe interaction requires action/input from the user.
-
completedThe interaction is completed.
-
failedThe interaction failed.
-
cancelledThe interaction was cancelled.
-
incompleteThe interaction is completed, but contains incomplete results (e.g. hitting max_tokens).
No description provided.
Always set to "interaction.status_update".
An optional opaque continuation token used to resume decoding from the latest checkpoint after a disconnected stream.
usage Usage (optional)
Model usage statistics up to this checkpoint.
Fields
Number of tokens in the prompt (context).
input_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of input token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens in the cached part of the prompt (the cached content).
cached_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of cached token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Total number of tokens across all the generated responses.
output_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of output token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens present in tool-use prompt(s).
tool_use_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of tool-use token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens of thoughts for thinking models.
Total token count for the interaction request (prompt + responses + other internal tokens).
grounding_tool_count array (GroundingToolCount) (optional)
Grounding tool count.
Fields
The grounding tool type associated with the count.
Possible values:
-
google_searchGrounding with Google Web Search and Image Search, & Web Grounding for Enterprise.
-
google_mapsGrounding with Google Maps.
The number of grounding tool counts.
The event_id token to be used to resume the interaction stream, from this event.
StepDelta
No description provided.
delta StepDeltaData (required)
No description provided.
Possible Types
ArgumentsDelta
No description provided.
Always set to "arguments_delta".
No description provided.
AudioDelta
No description provided.
Always set to "audio".
No description provided.
No description provided.
No description provided.
Possible values:
-
audio/wavWAV audio format
-
audio/mp3MP3 audio format
-
audio/aiffAIFF audio format
-
audio/aacAAC audio format
-
audio/oggOGG audio format
-
audio/flacFLAC audio format
-
audio/mpegMPEG audio format
-
audio/m4aM4A audio format
-
audio/l16L16 audio format
-
audio/opusOPUS audio format
-
audio/alawALAW audio format
-
audio/mulawMULAW audio format
-
audio/webmWEBM audio format
The sample rate of the audio.
The number of audio channels.
CodeExecutionCallDelta
arguments CodeExecutionCallArguments (required)
No description provided.
Fields
Programming language of the `code`.
Possible values:
-
pythonPython >= 3.10, with numpy and simpy available.
-
bashBash. Only available for Gemini 3.0 model or above.
The code to be executed.
No description provided.
Always set to "code_execution_call".
A signature hash for backend validation.
CodeExecutionResultDelta
No description provided.
No description provided.
Always set to "code_execution_result".
No description provided.
A signature hash for backend validation.
DocumentDelta
No description provided.
Always set to "document".
No description provided.
No description provided.
No description provided.
Possible values:
-
application/pdfPDF document format
-
text/csvCSV document format
FileSearchCallDelta
No description provided.
Always set to "file_search_call".
A signature hash for backend validation.
FileSearchResultDelta
result array (FileSearchResult) (required)
No description provided.
No description provided.
Always set to "file_search_result".
A signature hash for backend validation.
FunctionResultDelta
No description provided.
No description provided.
Always set to "function_result".
No description provided.
No description provided.
GoogleMapsCallDelta
No description provided.
Always set to "google_maps_call".
arguments GoogleMapsCallArguments (optional)
The arguments to pass to the Google Maps tool.
Fields
The queries to be executed.
A signature hash for backend validation.
GoogleMapsResultDelta
No description provided.
Always set to "google_maps_result".
result array (GoogleMapsResult) (optional)
The results of the Google Maps.
Fields
places array (Places) (optional)
The places that were found.
Fields
The ID of the place, in `places/{place_id}` format.
Title of the place.
URI reference of the place.
review_snippets array (ReviewSnippet) (optional)
Snippets of reviews that are used to generate answers about the features of a given place in Google Maps.
Fields
Title of the review.
A link that corresponds to the user review on Google Maps.
The ID of the review snippet.
Resource name of the Google Maps widget context token.
A signature hash for backend validation.
GoogleSearchCallDelta
arguments GoogleSearchCallArguments (required)
No description provided.
Fields
Web search queries for the following-up web search.
No description provided.
Always set to "google_search_call".
A signature hash for backend validation.
GoogleSearchResultDelta
result array (GoogleSearchResult) (required)
No description provided.
Fields
Web content snippet that can be embedded in a web page or an app webview.
No description provided.
Always set to "google_search_result".
No description provided.
A signature hash for backend validation.
ImageDelta
No description provided.
Always set to "image".
No description provided.
No description provided.
No description provided.
Possible values:
-
image/pngPNG image format
-
image/jpegJPEG image format
-
image/webpWebP image format
-
image/heicHEIC image format
-
image/heifHEIF image format
-
image/gifGIF image format
-
image/bmpBMP image format
-
image/tiffTIFF image format
resolution MediaResolution (optional)
The resolution of the media.
Possible values
-
lowLow resolution.
-
mediumMedium resolution.
-
highHigh resolution.
-
ultra_highUltra high resolution.
McpServerToolCallDelta
No description provided.
No description provided.
No description provided.
No description provided.
Always set to "mcp_server_tool_call".
McpServerToolResultDelta
No description provided.
No description provided.
Always set to "mcp_server_tool_result".
No description provided.
No description provided.
TextAnnotationDelta
No description provided.
Always set to "text_annotation_delta".
annotations array (Annotation) (optional)
Citation information for model-generated content.
Possible Types
FileCitation
A file citation annotation.
No description provided.
Always set to "file_citation".
The URI of the file.
The name of the file.
Source attributed for a portion of the text.
User provided metadata about the retrieved context.
Page number of the cited document, if applicable.
Media ID in-case of image citations, if applicable.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
PlaceCitation
A place citation annotation.
No description provided.
Always set to "place_citation".
The ID of the place, in `places/{place_id}` format.
Title of the place.
URI reference of the place.
review_snippets array (ReviewSnippet) (optional)
Snippets of reviews that are used to generate answers about the features of a given place in Google Maps.
Fields
Title of the review.
A link that corresponds to the user review on Google Maps.
The ID of the review snippet.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
UrlCitation
A URL citation annotation.
No description provided.
Always set to "url_citation".
The URL.
The title of the URL.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
TextDelta
No description provided.
No description provided.
Always set to "text".
ThoughtSignatureDelta
No description provided.
Always set to "thought_signature".
Signature to match the backend source to be part of the generation.
ThoughtSummaryDelta
No description provided.
Always set to "thought_summary".
A new summary item to be added to the thought.
UrlContextCallDelta
arguments UrlContextCallArguments (required)
No description provided.
Fields
The URLs to fetch.
No description provided.
Always set to "url_context_call".
A signature hash for backend validation.
UrlContextResultDelta
result array (UrlContextResult) (required)
No description provided.
Fields
The URL that was fetched.
The status of the URL retrieval.
Possible values:
-
successUrl retrieval is successful.
-
errorUrl retrieval is failed due to error.
-
paywallUrl retrieval is failed because the content is behind paywall.
-
unsafeUrl retrieval is failed because the content is unsafe.
No description provided.
Always set to "url_context_result".
No description provided.
A signature hash for backend validation.
VideoDelta
No description provided.
Always set to "video".
No description provided.
No description provided.
No description provided.
Possible values:
-
video/mp4MP4 video format
-
video/mpegMPEG video format
-
video/mpgMPG video format
-
video/movMOV video format
-
video/aviAVI video format
-
video/x-flvFLV video format
-
video/webmWebM video format
-
video/wmvWMV video format
-
video/3gpp3GPP video format
-
video/jpeg2000JPEG 2000 video format
resolution MediaResolution (optional)
The resolution of the media.
Possible values
-
lowLow resolution.
-
mediumMedium resolution.
-
highHigh resolution.
-
ultra_highUltra high resolution.
No description provided.
Always set to "step.delta".
The event_id token to be used to resume the interaction stream, from this event.
metadata StepDeltaMetadata (optional)
No description provided.
Fields
total_usage Usage (optional)
Statistics on the interaction request's token usage.
Fields
Number of tokens in the prompt (context).
input_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of input token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens in the cached part of the prompt (the cached content).
cached_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of cached token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Total number of tokens across all the generated responses.
output_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of output token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens present in tool-use prompt(s).
tool_use_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of tool-use token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens of thoughts for thinking models.
Total token count for the interaction request (prompt + responses + other internal tokens).
grounding_tool_count array (GroundingToolCount) (optional)
Grounding tool count.
Fields
The grounding tool type associated with the count.
Possible values:
-
google_searchGrounding with Google Web Search and Image Search, & Web Grounding for Enterprise.
-
google_mapsGrounding with Google Maps.
The number of grounding tool counts.
StepStart
No description provided.
No description provided.
No description provided.
Always set to "step.start".
The event_id token to be used to resume the interaction stream, from this event.
StepStop
No description provided.
No description provided.
Always set to "step.stop".
usage Usage (optional)
Cumulative model usage stats from the start of the session.
Fields
Number of tokens in the prompt (context).
input_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of input token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens in the cached part of the prompt (the cached content).
cached_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of cached token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Total number of tokens across all the generated responses.
output_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of output token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens present in tool-use prompt(s).
tool_use_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of tool-use token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens of thoughts for thinking models.
Total token count for the interaction request (prompt + responses + other internal tokens).
grounding_tool_count array (GroundingToolCount) (optional)
Grounding tool count.
Fields
The grounding tool type associated with the count.
Possible values:
-
google_searchGrounding with Google Web Search and Image Search, & Web Grounding for Enterprise.
-
google_mapsGrounding with Google Maps.
The number of grounding tool counts.
step_usage Usage (optional)
Model usage stats for this specific step.
Fields
Number of tokens in the prompt (context).
input_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of input token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens in the cached part of the prompt (the cached content).
cached_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of cached token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Total number of tokens across all the generated responses.
output_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of output token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens present in tool-use prompt(s).
tool_use_tokens_by_modality array (ModalityTokens) (optional)
A breakdown of tool-use token usage by modality.
Fields
modality ResponseModality (optional)
The modality associated with the token count.
Possible values
-
textIndicates the model should return text.
-
imageIndicates the model should return images.
-
audioIndicates the model should return audio.
-
videoIndicates the model should return video.
-
documentIndicates the model should return documents.
Number of tokens for the modality.
Number of tokens of thoughts for thinking models.
Total token count for the interaction request (prompt + responses + other internal tokens).
grounding_tool_count array (GroundingToolCount) (optional)
Grounding tool count.
Fields
The grounding tool type associated with the count.
Possible values:
-
google_searchGrounding with Google Web Search and Image Search, & Web Grounding for Enterprise.
-
google_mapsGrounding with Google Maps.
The number of grounding tool counts.
The event_id token to be used to resume the interaction stream, from this event.
Examples
Error Event
{ "error": { "code": "not_found", "message": "Failed to get completed interaction: Result not found." }, "event_type": "error" }
Interaction Completed
{ "event_id": "evt_123", "event_type": "interaction.completed", "interaction": { "created": "2025-12-04T15:01:45Z", "id": "v1_ChdXS0l4YWZXTk9xbk0xZThQczhEcmlROBIXV0tJeGFmV05PcW5NMWU4UHM4RHJpUTg", "model": "gemini-3.6-flash", "status": "completed", "updated": "2025-12-04T15:01:45Z" } }
Interaction Completed
{ "event_id": "evt_123", "event_type": "interaction.completed", "interaction": { "created": "2025-12-04T15:01:45Z", "id": "v1_ChdXS0l4YWZXTk9xbk0xZThQczhEcmlROBIXV0tJeGFmV05PcW5NMWU4UHM4RHJpUTg", "model": "gemini-3-flash-preview", "object": "interaction", "status": "completed", "updated": "2025-12-04T15:01:45Z" } }
Interaction Created
{ "event_id": "evt_123", "event_type": "interaction.created", "interaction": { "created": "2025-12-04T15:01:45Z", "id": "v1_ChdXS0l4YWZXTk9xbk0xZThQczhEcmlROBIXV0tJeGFmV05PcW5NMWU4UHM4RHJpUTg", "model": "gemini-3.6-flash", "status": "in_progress", "updated": "2025-12-04T15:01:45Z" } }
Interaction Created
{ "event_id": "evt_123", "event_type": "interaction.created", "interaction": { "id": "v1_ChdXS0l4YWZXTk9xbk0xZThQczhEcmlROBIXV0tJeGFmV05PcW5NMWU4UHM4RHJpUTg", "model": "gemini-3-flash-preview", "object": "interaction", "status": "in_progress" } }
Interaction Status Update
{ "event_type": "interaction.status_update", "interaction_id": "v1_ChdTMjQ0YWJ5TUF1TzcxZThQdjRpcnFRcxIXUzI0NGFieU1BdU83MWU4UHY0aXJxUXM", "status": "in_progress" }
Step Delta
{ "delta": { "type": "text", "text": "Hello" }, "event_type": "step.delta", "index": 0 }
Step Start
{ "event_type": "step.start", "index": 0, "step": { "type": "model_output" } }
Step Stop
{ "event_type": "step.stop", "index": 0 }
ResponseFormat
Possible Types
AudioResponseFormat
Configuration for audio output format.
No description provided.
Always set to "audio".
The MIME type of the audio output.
Possible values:
-
audio/mp3MP3 audio format.
-
audio/ogg_opusOGG Opus audio format.
-
audio/l16Raw PCM (L16) audio format.
-
audio/wavWAV audio format.
-
audio/alawA-law audio format.
-
audio/mulawMu-law audio format.
The delivery mode for the audio output.
Possible values:
-
inlineAudio data is returned inline in the response.
-
uriAudio data is returned as a URI.
Sample rate in Hz.
Bit rate in bits per second (bps). Only applicable for compressed formats (MP3, Opus).
ImageResponseFormat
Configuration for image output format.
No description provided.
Always set to "image".
The MIME type of the image output.
Possible values:
-
image/jpegJPEG image format.
The delivery mode for the image output.
Possible values:
-
inlineImage data is returned inline in the response.
-
uriImage data is returned as a URI.
The aspect ratio for the image output.
Possible values:
-
1:11:1 aspect ratio.
-
2:32:3 aspect ratio.
-
3:23:2 aspect ratio.
-
3:43:4 aspect ratio.
-
4:34:3 aspect ratio.
-
4:54:5 aspect ratio.
-
5:45:4 aspect ratio.
-
9:169:16 aspect ratio.
-
16:916:9 aspect ratio.
-
21:921:9 aspect ratio.
-
1:81:8 aspect ratio.
-
8:18:1 aspect ratio.
-
1:41:4 aspect ratio.
-
4:14:1 aspect ratio.
The size of the image output.
Possible values:
-
512512px image size.
-
1K1K image size.
-
2K2K image size.
-
4K4K image size.
TextResponseFormat
Configuration for text output format.
No description provided.
Always set to "text".
The MIME type of the text output.
Possible values:
-
application/jsonJSON output format.
-
text/plainPlain text output format.
The JSON schema that the output should conform to. Only applicable when mime_type is application/json. Supports a subset of JSON Schema. `minLength`, `maxLength`, `minProperties`, `maxProperties`, `uniqueItems`, `contains`, `minContains`, and `maxContains` are ignored and not enforced; validate these in your application. `minItems` and `maxItems` are enforced. Schemas that are too complex to enforce (for example, large `maxItems` on nested arrays) return a 400 INVALID_ARGUMENT error.
VideoResponseFormat
Configuration for video output format.
No description provided.
Always set to "video".
The delivery mode for the video output.
Possible values:
-
inlineVideo data is returned inline in the response.
-
uriVideo data is returned as a URI.
The aspect ratio for the video output.
Possible values:
-
16:916:9 aspect ratio.
-
9:169:16 aspect ratio.
The duration for the video output.
The video output resolution. Defaults to 720p.
Possible values:
-
360p360p resolution.
-
720p720p resolution.
-
1080p1080p resolution.
-
4k4K resolution.
Examples
Audio Output
{ "type": "audio", "sample_rate": 24000 }
Image Output
{ "type": "image", "aspect_ratio": "16:9", "image_size": "1K", "mime_type": "image/jpeg" }
Text Output (JSON Schema)
{ "type": "text", "mime_type": "application/json", "schema": { "type": "object", "properties": { "ingredients": { "type": "array", "items": { "type": "string" } }, "recipe_name": { "type": "string" } }, "required": [ "ingredients", "recipe_name" ] } }
VideoResponseFormat
No examples available for this type.
Step
A step in the interaction.
Possible Types
CodeExecutionCallStep
Code execution call step.
arguments CodeExecutionCallStepArguments (required)
Required. The arguments to pass to the code execution.
Fields
Programming language of the `code`.
Possible values:
-
pythonPython >= 3.10, with numpy and simpy available.
-
bashBash. Only available for Gemini 3.0 model or above.
The code to be executed.
Required. A unique ID for this specific tool call.
No description provided.
Always set to "code_execution_call".
A signature hash for backend validation.
CodeExecutionResultStep
Code execution result step.
Required. The output of the code execution.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "code_execution_result".
Whether the code execution resulted in an error.
A signature hash for backend validation.
FileSearchCallStep
File Search call step.
Required. A unique ID for this specific tool call.
No description provided.
Always set to "file_search_call".
A signature hash for backend validation.
FileSearchResultStep
File Search result step.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "file_search_result".
A signature hash for backend validation.
FunctionCallStep
A function tool call step.
Required. The name of the tool to call.
Required. The arguments to pass to the function.
Required. A unique ID for this specific tool call.
No description provided.
Always set to "function_call".
FunctionResultStep
Result of a function tool call.
Required. The result of the tool call.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "function_result".
The name of the tool that was called.
Whether the tool call resulted in an error.
GoogleMapsCallStep
Google Maps call step.
Required. A unique ID for this specific tool call.
No description provided.
Always set to "google_maps_call".
arguments GoogleMapsCallStepArguments (optional)
The arguments to pass to the Google Maps tool.
Fields
The queries to be executed.
A signature hash for backend validation.
GoogleMapsResultStep
Google Maps result step.
result array (GoogleMapsResultItem) (required)
No description provided.
Fields
places array (GoogleMapsResultPlaces) (optional)
No description provided.
Fields
No description provided.
No description provided.
No description provided.
review_snippets array (ReviewSnippet) (optional)
No description provided.
Fields
Title of the review.
A link that corresponds to the user review on Google Maps.
The ID of the review snippet.
No description provided.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "google_maps_result".
A signature hash for backend validation.
GoogleSearchCallStep
Google Search call step.
arguments GoogleSearchCallStepArguments (required)
Required. The arguments to pass to Google Search.
Fields
Web search queries for the following-up web search.
Required. A unique ID for this specific tool call.
No description provided.
Always set to "google_search_call".
The type of search grounding enabled.
Possible values:
-
web_searchSetting this field enables web search. Only text results are returned.
-
image_searchSetting this field enables image search. Image bytes are returned.
A signature hash for backend validation.
GoogleSearchResultStep
Google Search result step.
result array (GoogleSearchResultItem) (required)
Required. The results of the Google Search.
Fields
Web content snippet that can be embedded in a web page or an app webview.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "google_search_result".
Whether the Google Search resulted in an error.
A signature hash for backend validation.
McpServerToolCallStep
MCPServer tool call step.
Required. The name of the tool which was called.
Required. The name of the used MCP server.
Required. The JSON object of arguments for the function.
Required. A unique ID for this specific tool call.
No description provided.
Always set to "mcp_server_tool_call".
McpServerToolResultStep
MCPServer tool result step.
Required. The output from the MCP server call. Can be simple text or rich content.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "mcp_server_tool_result".
Name of the tool which is called for this specific tool call.
The name of the used MCP server.
ModelOutputStep
Output generated by the model.
No description provided.
Always set to "model_output".
No description provided.
ProcessingCallStep
A server-initiated processing step for media analysis (e.g. video understanding).
Required. A unique ID for this specific tool call.
No description provided.
Always set to "processing_call".
ProcessingResultStep
The result of a server-initiated media processing step.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "processing_result".
ThoughtStep
A thought step.
No description provided.
Always set to "thought".
A signature hash for backend validation.
A summary of the thought.
UrlContextCallStep
URL context call step.
arguments UrlContextCallArguments (required)
Required. The arguments to pass to the URL context.
Fields
The URLs to fetch.
Required. A unique ID for this specific tool call.
No description provided.
Always set to "url_context_call".
A signature hash for backend validation.
UrlContextResultStep
URL context result step.
result array (UrlContextResult) (required)
Required. The results of the URL context.
Fields
The URL that was fetched.
The status of the URL retrieval.
Possible values:
-
successUrl retrieval is successful.
-
errorUrl retrieval is failed due to error.
-
paywallUrl retrieval is failed because the content is behind paywall.
-
unsafeUrl retrieval is failed because the content is unsafe.
Required. ID to match the ID from the function call block.
No description provided.
Always set to "url_context_result".
Whether the URL context resulted in an error.
A signature hash for backend validation.
UserInputStep
Input provided by the user.
No description provided.
Always set to "user_input".
No description provided.
Examples
CodeExecutionCallStep
{ "type": "code_execution_call", "arguments": { "code": "print(sum(range(1, 11)))" }, "id": "code_call_71021" }
CodeExecutionResultStep
{ "type": "code_execution_result", "call_id": "code_call_71021", "result": "55\n" }
FileSearchCallStep
{ "type": "file_search_call", "id": "file_call_88192" }
FileSearchResultStep
{ "type": "file_search_result", "call_id": "file_call_88192" }
FunctionCallStep
{ "name": "get_weather", "type": "function_call", "arguments": { "location": "Boston, MA" }, "id": "call_98231" }
FunctionResultStep
{ "name": "get_weather", "type": "function_result", "call_id": "call_98231", "result": [ { "type": "text", "text": "{\"weather\":\"sunny\"}" } ] }
GoogleMapsCallStep
{ "type": "google_maps_call", "arguments": { "latitude": 37.7749, "longitude": -122.4194 }, "id": "maps_call_39201" }
GoogleMapsResultStep
{ "type": "google_maps_result", "call_id": "maps_call_39201", "result": [ { "name": "Golden Gate Park", "place_id": "ChIJIQBpAG2ahYAR9R7bNdTLg8M", "rating": 4.8 } ] }
GoogleSearchCallStep
{ "type": "google_search_call", "arguments": { "query": "Who won the men's 100m in Paris 2024?" }, "id": "search_call_19201" }
GoogleSearchResultStep
{ "type": "google_search_result", "call_id": "search_call_19201", "result": [ { "title": "Paris 2024 Olympics: Noah Lyles wins men's 100m gold", "url": "https://olympics.com/en/news/paris-2024-noah-lyles-wins-mens-100m-gold", "snippet": "American Noah Lyles won the Olympic men's 100m gold medal in a photo finish." } ] }
McpServerToolCallStep
No examples available for this type.
McpServerToolResultStep
No examples available for this type.
ModelOutputStep
{ "type": "model_output", "content": [ { "type": "text", "text": "The capital of France is Paris." } ] }
ProcessingCallStep
No examples available for this type.
ProcessingResultStep
No examples available for this type.
ThoughtStep
{ "type": "thought", "signature": "thought_sig_abcd1234", "summary": [ { "type": "text", "text": "The model is searching Google for the capital of France." } ] }
UrlContextCallStep
{ "type": "url_context_call", "arguments": { "urls": [ "https://www.example.com" ] }, "id": "url_call_10219" }
UrlContextResultStep
{ "type": "url_context_result", "call_id": "url_call_10219", "result": [ { "title": "Example Domain", "url": "https://www.example.com", "snippet": "This domain is for use in illustrative examples in documents." } ] }
UserInputStep
{ "type": "user_input", "content": [ { "type": "text", "text": "What is the capital of France?" } ] }
ToolChoiceConfig
The tool choice configuration containing allowed tools.
Fields
allowed_tools AllowedTools (optional)
The allowed tools.
Fields
The mode of the tool choice.
Possible values:
-
autoAuto tool choice.
-
anyAny tool choice.
-
noneNo tool choice.
-
validatedValidated tool choice.
The names of the allowed tools.
Examples
Example
{ "allowed_tools": { "mode": "any", "tools": [ "my_tool" ] } }
ImageContent
An image content block.
Fields
No description provided.
Always set to "image".
The image content.
The URI of the image.
resolution MediaResolution (optional)
The resolution of the media.
Possible values
-
lowLow resolution.
-
mediumMedium resolution.
-
highHigh resolution.
-
ultra_highUltra high resolution.
The mime type of the image.
Possible values:
-
image/pngPNG image format
-
image/jpegJPEG image format
-
image/webpWebP image format
-
image/heicHEIC image format
-
image/heifHEIF image format
-
image/gifGIF image format
-
image/bmpBMP image format
-
image/tiffTIFF image format
Examples
Image
{ "type": "image", "data": "BASE64_ENCODED_IMAGE", "mime_type": "image/png" }
TextContent
A text content block.
Fields
Required. The text content.
No description provided.
Always set to "text".
annotations array (Annotation) (optional)
Citation information for model-generated content.
Possible Types
FileCitation
A file citation annotation.
No description provided.
Always set to "file_citation".
The URI of the file.
The name of the file.
Source attributed for a portion of the text.
User provided metadata about the retrieved context.
Page number of the cited document, if applicable.
Media ID in-case of image citations, if applicable.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
PlaceCitation
A place citation annotation.
No description provided.
Always set to "place_citation".
The ID of the place, in `places/{place_id}` format.
Title of the place.
URI reference of the place.
review_snippets array (ReviewSnippet) (optional)
Snippets of reviews that are used to generate answers about the features of a given place in Google Maps.
Fields
Title of the review.
A link that corresponds to the user review on Google Maps.
The ID of the review snippet.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
UrlCitation
A URL citation annotation.
No description provided.
Always set to "url_citation".
The URL.
The title of the URL.
Start of segment of the response that is attributed to this source. Index indicates the start of the segment, measured in bytes.
End of the attributed segment, exclusive.
Examples
Text
{ "type": "text", "text": "Hello, how are you?" }