Unverified50% confidenceFactExact time
What the model returns is not the function call itself but a tool_calls field containing the function name and parameters, which the application code parses and executes on its own.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
Related Entities
Related Claims
Unverified函数调用（Function Calling）让模型能够调用外部函数和API与真实业务系统对接76% similarUnverifiedIn the Function Calling mechanism, developers declare in advance the name, purpose, and parameter structure of a tool (typically represented as a JSON Schema), Gemini infers whether a call is needed and returns a structured function call request, and the actual function is executed by the client or backend, with the result returned to the model for integration.74% similarUnverifiedAgentScope encapsulates the Function Calling process so that developers only need to register tool functions, and the framework automatically handles parameter validation, type conversion, and error retries.72% similarUnverified当模型决定调用工具时会生成带tool_calls字段的AIMessage，工具执行结果以ToolMessage形式回传给模型形成工具调用闭环72% similar
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