テキスト生成

Snowflake による Generative AI 入門

James Cha-Earley

Senior Developer Advocate, Snowflake

ホテル口コミへの返信管理

夕暮れの海岸沿いのホテル

¹ 画像は Google Gemini 2.5 Pro で生成

summarize()

long_review = """
This hotel was nothing short of amazing. The best views; the best location;
and the best staff. It's clean; conveniently located to other restaurants
on the strip; although we ate at the restaurants on site and each was so good
there's really no reason to leave. Ohhh the views. The beach was free of seaweed; 
amazingly clean and plenty of space; it wasn't crowded at all. 
Stay here; you will not regret it. Did I mention how comfortable the beds were. 
Yes save yourself trouble and stay here. It's really perfect.
"""


from snowflake.cortex import summarize
summarized_review = summarize(text=long_review)

要約の表示

print(summarized_review)

The hotel exceeded expectations with stunning views, exceptional staff,
comfortable beds, and top-notch on-site dining, making it a perfect and 
highly recommended stay.

データベースからの抽出

セル1の SQL クエリ

セル2の Python コード

返信の生成

from snowflake.cortex import complete


prompt = f"Write a short response to this hotel review: {latest_review}."


# プロンプトを渡す
response = complete(prompt=prompt,

返信の生成

from snowflake.cortex import complete


prompt = f"Write a short response to this hotel review: {latest_review}."


# 使用モデルを指定
response = complete(prompt=prompt, 
                    model='llama3.1-8b',

返信の生成

from snowflake.cortex import complete


prompt = f"Write a short response to this hotel review: {latest_review}."


# temperature を設定 — 出力の予測性を調整
response = complete(prompt=prompt, 
                    model='llama3.1-8b',
                    options={
                        'temperature':0.3,

返信の生成

from snowflake.cortex import complete


prompt = f"Write a short response to this hotel review: {latest_review}."


# max_tokens でトークン数を制限
response = complete(prompt=prompt, 
                    model='llama3.1-8b',
                    options={
                        'temperature':0.3,
                        'max_tokens':150
                        }
                    )

返信の確認

print(response)

Thank you so much for sharing your wonderful experience at the Hyatt Nice! 
We're thrilled to hear that you had a fantastic stay with us.

高速・柔軟・自然

AI_COMPLETE() による生成

SELECT
  DESCRIPTION,
  AI_COMPLETE(

    'llama3.1-8b',

    PROMPT('Write a short response to this hotel review: {0}.', DESCRIPTION),

    {'temperature': 0.3, 'max_tokens': 150}

    ) AS completion
FROM HOTELS.REVIEWS
ORDER BY date DESC
LIMIT 1;

Snowflake ノートブックでの出力

Snowflake ノートブックでの AI_COMPLETE() の出力

AI_COMPLETE() はすぐに利用可能

Snowflake でのテキスト生成

-- SQL セルで記述
AI_COMPLETE(
  'llama3.1-8b',
  PROMPT('Write a short response 
          to this hotel review: {0}.', 
          DESCRIPTION),
  {'temperature': 0.3, 
   'max_tokens': 150}
    )

複数行を一括生成

# Python セルで記述
complete(
    model='llama3.1-8b', 
    prompt = f"""Write a short response
        to this hotel review: 
        {latest_review}.""",
    options={'temperature':0.3,
             'max_tokens':150}
    )

複数工程のワークフロー連結に活用

Vamos praticar!

Snowflake による Generative AI 入門