PaLM API: Panduan Memulai Teks dengan Python

Lihat di ai.google.dev Coba notebook Colab Lihat notebook di GitHub

Di notebook ini, Anda akan mempelajari cara mulai menggunakan PaLM API, yang memberi Anda akses ke model bahasa besar (LLM) terbaru Google. Di sini, Anda akan mempelajari cara menggunakan fitur pembuatan teks PaLM API.

Penyiapan

Pertama, download dan instal library Python PaLM API.

pip install -q google-generativeai
import pprint
import google.generativeai as palm

Mengambil Kunci API

Untuk memulai, Anda harus membuat kunci API.

palm.configure(api_key='YOUR_API_KEY')

Pembuatan teks

Gunakan fungsi palm.list_models untuk menemukan model yang tersedia:

models = [m for m in palm.list_models() if 'generateText' in m.supported_generation_methods]
model = models[0].name
print(model)
models/text-bison-001

Gunakan metode palm.generate_text untuk membuat teks:

prompt = """
You are an expert at solving word problems.

Solve the following problem:

I have three houses, each with three cats.
each cat owns 4 mittens, and a hat. Each mitten was
knit from 7m of yarn, each hat from 4m.
How much yarn was needed to make all the items?

Think about it step by step, and show your work.
"""

completion = palm.generate_text(
    model=model,
    prompt=prompt,
    temperature=0,
    # The maximum length of the response
    max_output_tokens=800,
)

print(completion.result)
There are 3 houses * 3 cats / house = 9 cats. So, 9 cats * 4 mittens / cat = 36 mittens were made. Also, 9 cats * 1 hat / cat = 9 hats were made. So, 36 mittens * 7m / mitten = 252m of yarn was used for the mittens. Also, 9 hats * 4m / hat = 36m of yarn was used for the hats. In total, 252m + 36m = 288m of yarn was used.
Thus, the answer is 288.

Opsi lainnya

Fungsi palm.generate_text memiliki beberapa argumen lain yang perlu disebutkan.

Urutan perhentian

Gunakan argumen stop_sequences untuk menghentikan pembuatan lebih awal.

Misalnya, LLM sering membuat kesalahan dalam aritmatika. Anda dapat meminta model untuk "menggunakan kalkulator" dengan menempatkan persamaan dalam tag <calc>.

Minta model berhenti di tag penutup sehingga Anda dapat mengedit perintah:

calc_prompt = f"""
Please solve the following problem.

{prompt}

----------------

Important: Use the calculator for each step.
Don't do the arithmetic in your head. 

To use the calculator wrap an equation in <calc> tags like this: 

<calc> 3 cats * 2 hats/cat </calc> = 6

----------------

"""

equation=None
while equation is None:
    completion = palm.generate_text(
        model=model,
        prompt=calc_prompt,
        stop_sequences=['</calc>'],
        # The maximum length of the response
        max_output_tokens=800,
    )

    try:
        response, equation = completion.result.split('<calc>', maxsplit=1)
    except Exception:
        continue
print(response)
Chain-of-thought:

There are three houses, and each house has three cats, so there are 3 houses * 3 cats / house = 9 cats. Each cat has 4 mittens, so the cats need 9 cats * 4 mittens / cat = 36 mittens. Each mitten takes 7m of yarn, so 36 mittens * 7m / mitten = 252m of yarn. Each cat has a hat, and each hat takes 4m of yarn, so 9 cats * 4m / cat = 36m of yarn. So, in total, 36m + 252m = 288m of yarn were needed.

The answer should be
print(equation)
9 cats * 4 mittens / cat

Dari sana, Anda dapat menghitung hasilnya, dan membuat prompt baru untuk melanjutkan model. Untuk penerapan lengkap, lihat Contoh kalkulator teks.

Kandidat

Biasanya, ada tingkat keacakan dalam teks yang dihasilkan oleh LLM. (Baca alasannya lebih lanjut di artikel LLM. Artinya, jika Anda memanggil API lebih dari sekali dengan input yang sama, Anda mungkin mendapatkan respons yang berbeda. Anda dapat memanfaatkan fitur ini untuk mendapatkan respons model alternatif.

Argumen temperature mengontrol varians respons. Objek palm.Model memberikan nilai default untuk temperature dan parameter lainnya.

models[0]
Model(name='models/text-bison-001', base_model_id='', version='001', display_name='Text Bison', description='Model targeted for text generation.', input_token_limit=8196, output_token_limit=1024, supported_generation_methods=['generateText'], temperature=0.7, top_p=0.95, top_k=40)

Argumen candidate_count mengontrol jumlah respons yang ditampilkan:

completion = palm.generate_text(
    model=model,
    prompt=prompt,
    # The number of candidates to return
    candidate_count=8,
    # Set the temperature to 1.0 for more variety of responses.
    temperature=1.0,
    max_output_tokens=800,
)

print(completion.result)
In each house there are 3 cats * 4 mittens / cat = 12 mittens. In total there are 3 houses * 12 mittens / house = 36 mittens. In total there are 36 mittens * 7m / mitten = 252m of yarn for the mittens. In total there are 3 houses * 3 cats / house * 1 hat / cat = 9 hats. In total there are 9 hats * 4m / hat = 36m of yarn for the hats. In total there are 36m yarn for the hats + 252m yarn for the mittens = 288m of yarn.
The answer: 288.

Saat Anda meminta beberapa kandidat, atribut Completion.result tetap hanya berisi kandidat pertama. Atribut Completion.candidates berisi semuanya:

import pprint
pprint.pprint(completion.candidates)
[{'output': 'In each house there are 3 cats * 4 mittens / cat = 12 mittens. In '
            'total there are 3 houses * 12 mittens / house = 36 mittens. In '
            'total there are 36 mittens * 7m / mitten = 252m of yarn for the '
            'mittens. In total there are 3 houses * 3 cats / house * 1 hat / '
            'cat = 9 hats. In total there are 9 hats * 4m / hat = 36m of yarn '
            'for the hats. In total there are 36m yarn for the hats + 252m '
            'yarn for the mittens = 288m of yarn.\n'
            'The answer: 288.',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]},
 {'output': 'Each house has 3 cats, so each house needs 3 * 4 = 12 mittens. '
            "With three houses, that's 3 * 12 = 36 mittens. And each house "
            'needs 3 * 1 = 3 hats. So in total, we need 3 hats + 36 mittens = '
            '39 items. Each mitten needs 7 meters of yarn, so 39 mittens need '
            '39 * 7 = 273 meters of yarn. Each hat needs 4 meters of yarn, and '
            "we need 3 hats, so that's 4 * 3 = 12 meters of yarn. So in total, "
            'we needed 12 + 273 = 285 meters of yarn.\n'
            'Thus, the answer is 285.',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]},
 {'output': 'There are 3 houses * 3 cats / house = 9 cats. There are 9 cats * '
            '4 mittens / cat = 36 mittens. There are 9 cats * 1 hat / cat = 9 '
            'hats. The total amount of yarn for the mittens is 36 mittens * 7m '
            '/ mitten = 252m. The total amount of yarn for the hats is 9 hats '
            '* 4m / hat = 36m. The total amount of yarn is 252m + 36m = 288m.\n'
            'Thus, the answer is 288.',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]},
 {'output': 'There are 3 houses * 3 cats / house = 9 cats. Each cat has 4 '
            'mittens + 1 hat = 5 items. So the total number of items is 9 cats '
            '* 5 items / cat = 45 items. Thus, 45 items * 7m / item = 315m of '
            'yarn was needed.\n'
            'Thus, the answer is 315.',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]},
 {'output': 'Chain-of-thought:\n'
            'There are 3 houses * 3 cats / house = 9 cats.\n'
            'The cats need 9 cats * 4 mittens / cat = 36 mittens.\n'
            'The cats need 9 cats * 1 hat / cat = 9 hats.\n'
            'The mittens need 36 mittens * 7m / mitten = 252m of yarn.\n'
            'The hats need 9 hats * 4m / hat = 36m of yarn.\n'
            'Therefore, the total amount of yarn needed is 252m + 36m = 288m.\n'
            '\n'
            'The answer should be 288',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]},
 {'output': 'First find the total number of cats: 3 houses * 3 cats / house = '
            '9 cats. Then multiply that number by the number of mittens per '
            'cat to find the total number of mittens: 9 cats * 4 mittens / cat '
            '= 36 mittens. Then multiply that number by the number of meters '
            'of yarn per mitten to find the total amount of yarn used for '
            'mittens: 36 mittens * 7 meters / mitten = 252 meters. Then do the '
            'same thing for hats: 9 cats * 1 hat / cat = 9 hats. Then multiply '
            'that number by the number of meters of yarn per hat to find the '
            'total amount of yarn used for hats: 9 hats * 4 meters / hat = 36 '
            'meters. Then add the amount of yarn used for mittens and hats to '
            'find the total amount of yarn used: 36 meters + 252 meters = 288 '
            'meters.\n'
            'Thus, the answer is 288.',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]},
 {'output': 'The total number of cats is 3 houses * 3 cats / house = 9 cats. '
            'So, the total number of mittens is 9 cats * 4 mittens / cat = 36 '
            'mittens. The total number of hats is 9 cats * 1 hat / cat = 9 '
            'hats. The total length of yarn needed to make the mittens is 36 '
            'mittens * 7 m / mitten = 252 m. The total length of yarn needed '
            'to make the hats is 9 hats * 4 m / hat = 36 m. So, the total '
            'length of yarn needed is 252 m + 36 m = 288 m.\n'
            '\n'
            'The answer: 288',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]},
 {'output': 'There are 3 houses with 3 cats each, so 3 * 3 = 9 cats. Each cat '
            'has 4 mittens and a hat, so 9 cats * 4 mittens / cat + 9 cats * 1 '
            'hat / cat = 36 mittens and 9 hats. Each mitten takes 7m of yarn '
            'and each hat takes 4m of yarn, so the total yarn needed is 36 '
            'mittens * 7m / mitten + 9 hats * 4m / hat = 252m + 36m = 288m.\n'
            'The answer: 288.',
  'safety_ratings': [{'category': <HarmCategory.HARM_CATEGORY_DEROGATORY: 1>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_TOXICITY: 2>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_VIOLENCE: 3>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_SEXUAL: 4>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_MEDICAL: 5>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>},
                     {'category': <HarmCategory.HARM_CATEGORY_DANGEROUS: 6>,
                      'probability': <HarmProbability.NEGLIGIBLE: 1>}]}]

Jadi, karena Anda tahu jawaban atas masalah ini, maka mudah untuk memeriksa tingkat penyelesaian:

import numpy as np
np.mean(['288' in c['output'] for c in completion.candidates])
0.75