结构化输出Structured Output
Structured Output
解决什么问题What problem it solves
让模型的回答是严格的格式（JSON 等），而不是一段散文。Make the model's answer a strict format (JSON and the like) rather than a paragraph of prose.
这是什么What it is
约束模型输出为机器可解析的结构，供程序直接使用。
Constraining the model to output machine-parsable structure that a program can consume directly.
为什么需要知道Why it matters
工具调用的前提。没有它，模型没法可靠地告诉程序「该调什么、传什么参数」。A precondition for tool calling. Without it a model cannot reliably tell a program what to call or which arguments to pass.