Unverified50% confidenceFactTime unknown
In OpenAI's and Anthropic's API designs, the messages array is an ordered list of conversation history where each message contains a role (user/assistant/tool) and content field
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026
Sources
Related Claims
Unverified在 OpenAI 等主流 API 中，每次调用都需要传入完整的消息历史（messages），包括 system、user、assistant 等角色的消息78% similarUnverifiedOpenAI采用以 messages 数组为核心的对话格式，通过 model 字段指定模型77% similarVerified在OpenAI Function Calling或LangChain的Tool调用规范中，上下文回贯对应将tool角色的消息插入messages列表76% similarUnverified主流大语言模型API在消息格式上存在显著差异：Anthropic使用messages数组结构和特殊的system prompt分离方式，OpenAI采用role/content键值对并支持function calling格式75% similarUnverified在OpenAI和Anthropic的API设计中，每一次工具调用会产生至少两条新消息（调用请求+执行结果）75% similar
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