Expired65% confidenceFactExact time
OpenAI uses a messages array structure, Anthropic's Claude API strictly separates the system prompt from the user conversation, and Google Gemini uses a contents field to encapsulate multi-turn conversations.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
7/7/2026
First Seen
Valid until: 10/5/2026(expired)
Sources
Kontext：一键迁移AI对话上下文，打破多模型切换壁垒
hackernewshackernews7/3/2026
Related Claims
VerifiedOpenAI's Chat Completions API format of using a message array as input has become the de facto industry standard, with mainstream model providers such as Anthropic, Google Gemini, and Mistral all offering compatible or similar interfaces.78% similarVerifiedAnthropic, Google, and OpenAI have each launched their own Agent frameworks: Claude Computer Use, Gemini Function Calling, and OpenAI Assistants API, respectively.77% similarVerifiedOpenAI's Assistants API, Anthropic's tool-calling interface, and Google Gemini's Agent capabilities continue to iterate.77% similarUnverifiedAnthropic、Google Gemini、Mistral等主流模型提供商都采用了类似OpenAI的消息序列格式76% similarUnverified不同Provider对工具调用的消息格式存在差异：OpenAI将工具定义放在顶层tools字段并通过role:tool返回结果，Anthropic Claude使用tool_use和tool_result内容块，Google Gemini采用functionDeclarations和functionResponse75% similar
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