Verified65% confidenceFactTime unknown
Codex relies on the Function Calling mechanism at its core, allowing the model to declare the need to invoke a specific tool during inference.
3
Sources
65%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
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Related Claims
Unverified工具调用的底层依赖函数签名描述（Function Schema），模型在推理时决定是否触发调用、传入参数，由宿主程序执行并将结果回注上下文78% similarUnverifiedFunction Calling采用关注点分离设计，语言模型只负责决策，真正的工具执行由应用层代码负责，模型不直接触碰外部系统75% similarUnverifiedCodex的计划模式机制理论基础来自大语言模型领域的思维链推理（Chain-of-Thought Reasoning）75% similarUnverifiedThe description field in a tool definition must be written clearly, because it is precisely what the model relies on to determine when to call the function.74% similarVerifiedThe tool-calling mechanism allows large language models to dynamically invoke external functions during inference, representing a fundamental leap from language models to action models.74% similar
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