最終更新:2025-07-31 (木) 09:15:22 (405d)

Function Calling

2023/06/13

関数を定義して渡すとOpenAI/APIが関数を呼び出す必要があるタイミング (ユーザーの入力に応じて) を検出し、関数シグネチャに準拠した JSON で応答

https://openai.com/index/function-calling-and-other-api-updates/

https://platform.openai.com/docs/guides/function-calling

例

from openai import OpenAI

client = OpenAI()

tools = [{
    "type": "function",
    "function": {
        "name": "get_weather",
        "description": "Get current temperature for a given location.",
        "parameters": {
            "type": "object",
            "properties": {
                "location": {
                    "type": "string",
                    "description": "City and country e.g. Bogotá, Colombia"
                }
            },
            "required": [
                "location"
            ],
            "additionalProperties": False
        },
        "strict": True
    }
}]

completion = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": "What is the weather like in Paris today?"}],
    tools=tools
)

print(completion.choices[0].message.tool_calls)

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