接口兼容就等于行为一致A Compatible API Means Identical Behaviour
微型指南 · 约 5 分钟Guide · about 5 min · 引用核验 2026-11-03（仅引用链接与日期） · refs checked 2026-11-03 (reference links and dates only)
兼容保证的是请求与响应的形状。Compatibility guarantees the shape of requests and responses, nothing more.
只要接口兼容 OpenAI，换过去效果就一样。If the API is OpenAI-compatible, switching over gives the same behaviour.
兼容通常指某些请求与响应约定；支持范围、默认参数、流式、工具调用和错误处理仍需逐项核对。接口名称相同不代表产品行为或输出质量相同。Compatibility typically concerns specified request/response conventions. Check supported scope, defaults, streaming, tools and errors individually. Shared interface names do not establish equal behavior or output quality.
例子与判断Example and interpretation
以下是教学情境，不是本站运行或实测记录。A teaching scenario, not a measured or executed site test.
迁移时准备普通回答、结构化输出、流式、工具调用和错误请求各一例。逐项记录返回字段与行为。请求能发送成功，只说明接口链路可用，不代表所有旧功能都保持原样。During migration, test ordinary output, structured output, streaming, tool calls and errors separately. Record fields and behavior. A successful request establishes connectivity, not preservation of every feature.
- vLLM OpenAI 兼容服务文档vLLM OpenAI-compatible server ↗