Verified65% confidenceFactExact time
In OpenAI's Function Calling, developers declare function names, parameter types, and descriptions in advance, and the LLM autonomously determines when and which function to call during inference, returning a structured call request to the application layer for execution.
3
Sources
65%
Confidence
Long-term
Relevance
7/16/2026
First Seen
Sources
Related Claims
VerifiedOpenAI推出了Function Calling机制，允许模型以结构化方式声明和调用外部函数82% similarVerifiedOpenAI's function calling/tool use mechanism is a hard constraint; the model inference engine directly constrains the valid set of output tokens during the decoding phase, thereby guaranteeing format compliance at the protocol level.78% similarVerifiedOpenAI launched the Function Calling specification in 2023, allowing developers to describe function interfaces in JSON Schema format, with the model autonomously deciding when to call them and what parameters to pass.78% similar
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