The Gemini API is the fastest path from prompt to production with Gemini, Veo, Nano Banana, and more. It lets you integrate these generative models into your applications to generate text and images, analyze multimodal inputs, and build conversational agents. ### Python from google import genai client = genai.Client() interaction = client.interactions.create( model="gemini-3.8-flash", input="Explain how AI works in a few words" ) print(interaction.output_text) ### JavaScript import { GoogleGenAI } from "@google/genai"; const ai = new GoogleGenAI({}); const interaction = await ai.interactions.create({ model: "gemini-3.8-flash", input: "Explain how AI works in a few words", }); console.log(interaction.output_text); ### Java import com.google.genai.Client; import com.google.genai.gaos.models.interactions.CreateModelInteraction; import com.google.genai.gaos.models.interactions.Interaction; import com.google.genai.gaos.models.interactions.InteractionsInput; import com.google.genai.gaos.models.interactions.Model; import com.google.genai.gaos.models.operations.CreateInteractionRequestBody; Client client = new Client(); CreateModelInteraction params = CreateModelInteraction.builder() .model(Model.of("gemini-3.7-flash")) .input(InteractionsInput.of("Explain how AI works in a few words")) .build(); Interaction interaction = client.interactions.create(CreateInteractionRequestBody.of(params)).interaction().get(); System.out.println(interaction.outputText().orElse("")); ### REST curl -X POST "https://generativelanguage.googleapis.com/v1beta/interactions" \ -H "x-goog-api-key: $GEMINI_API_KEY" \ -H 'Content-Type: application/json' \ -d '{ "model": "gemini-3.8-flash", "input": "Explain how AI works in a few words" }' [Get Started](https://ai.google.dev/gemini-api/docs/get-started) [Create API Key](https://aistudio.google.com/apikey) *** ** * ** *** ## Meet the models [View all](https://ai.google.dev/gemini-api/docs/models) [Gemini 3.8 Flash New Our most intelligent Flash model, engineered for long-horizon software engineering, autonomous agents, and complex enterprise workflows.](https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash) [Gemini 3.5 Flash-Lite High-volume, cost-sensitive model optimized for low-latency high throughput subagent tasks.](https://ai.google.dev/gemini-api/docs/models/gemini-3.5-flash-lite) [Gemini 3.1 Pro Our most intelligent model, the best in the world for multimodal understanding, all built on state-of-the-art reasoning.](https://ai.google.dev/gemini-api/docs/models/gemini-3.1-pro-preview) [Nano Banana 2 and Nano Banana Pro State-of-the-art image generation and editing models.](https://ai.google.dev/gemini-api/docs/image-generation) [Gemini Omni Flash Our state-of-the-art video generation and editing model.](https://ai.google.dev/gemini-api/docs/omni) [Gemini 3.5 Transcribe New Low-latency speech-to-text model with utterance-based language detection, speaker diarization, and word timestamps.](https://ai.google.dev/gemini-api/docs/models/gemini-3.5-transcribe) [Gemini Robotics A vision-language model (VLM) that brings Gemini's agentic capabilities to robotics and enables advanced reasoning in the physical world.](https://ai.google.dev/gemini-api/docs/robotics-overview) ## Explore Capabilities [Image Generation Generate and edit highly contextual images natively with Nano Banana.](https://ai.google.dev/gemini-api/docs/image-generation) [Long Context Input millions of tokens to Gemini models and derive understanding from unstructured images, videos, and documents.](https://ai.google.dev/gemini-api/docs/long-context) [Structured Outputs Constrain Gemini to respond with JSON, a structured data format suitable for automated processing.](https://ai.google.dev/gemini-api/docs/structured-output) [Function Calling Build agentic workflows by connecting Gemini to external APIs and tools.](https://ai.google.dev/gemini-api/docs/function-calling) [Video Generation with Veo 3.1 Create high-quality video content from text or image prompts with our state-of-the-art model.](https://ai.google.dev/gemini-api/docs/video) [Voice Agents with Live API Build real-time voice applications and agents with the Live API.](https://ai.google.dev/gemini-api/docs/live) [Tools Connect Gemini to the world through built-in tools like Google Search, URL Context, Google Maps, Code Execution and Computer Use.](https://ai.google.dev/gemini-api/docs/tools) [Document Understanding Process up to 1000 pages of PDF files with full multimodal understanding or other text-based file types.](https://ai.google.dev/gemini-api/docs/document-processing) [Thinking Explore how thinking capabilities improve reasoning for complex tasks and agents.](https://ai.google.dev/gemini-api/docs/thinking) ## Interactions API The **Interactions API** has become our default interface as of June 2026 and is the best way to build with Gemini models and agents going forward. If you're starting a new project, you should use the Interactions API. While it remains supported, the `generateContent` API is now considered legacy. [Interactions Overview Learn how the Interactions API manages conversation state, messages, and output formats.](https://ai.google.dev/gemini-api/docs/interactions-overview) [Migration Guide Step-by-step guide to transition your code from generateContent to the Interactions API.](https://ai.google.dev/gemini-api/docs/migrate-to-interactions) [Streaming Stream real-time tokens, incremental thoughts, and tool call events.](https://ai.google.dev/gemini-api/docs/streaming) [Google AI Studio Test prompts, manage your API keys, monitor usage, and build prototypes.](https://aistudio.google.com) [Developer Community Ask questions and find solutions from other developers and Google engineers.](https://discuss.ai.google.dev/c/gemini-api/4) [API Reference Find detailed information about the Gemini API in the official reference documentation.](https://ai.google.dev/api) [Status Check the status of Gemini API, Google AI Studio, and our model services.](https://aistudio.google.com/status)