Verified65% confidenceFactTime unknown
Every Function Call must have a corresponding Function Call Output, and the call_id of both must be exactly identical; otherwise the OpenAI API will reject the request and return an error.
3
Sources
65%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
OpenAI Agents SDK消息类型与对话历史管理实战指南
youtubeJames Briggs
Related Entities
Related Claims
VerifiedIn 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.70% similarVerifiedOpenAI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70% similarUnverifiedThe APIs of vendors such as Anthropic and OpenAI have strict pairing requirements for message sequences: every tool_use returned by the model in the previous turn must have a corresponding tool_result in the next message, and a missing or out-of-order one will cause the entire request to be rejected.69% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/16176API
curl https://kongchang.com/api/v1/knowledge/claims/16176MCP
get_claim(id=16176)