Expired60% confidenceFactExact time
OpenAI supports parallel_tool_calls for invoking multiple tools in parallel; Anthropic's Claude uses special <function_calls> XML tags to delimit tool call output; and Google Gemini declares tools through FunctionDeclaration objects.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/14/2026
First Seen
Valid until: 10/12/2026(expired)
Sources
MCP协议详解：与Function Calling、Agent的关系及实践指南
bilibili六六科技笔记7/11/2026
Related Claims
UnverifiedOpenAI 使用 JSON Schema 定义 Function Calling 工具参数，Gemini 引入了 Parallel Function Calling 机制80% similarVerifiedOpenAI's Function Calling, Anthropic's Tool Use, and Google's Gemini Function Calling are the current mainstream technical solutions for tool invocation.78% similarPartially VerifiedAnthropic proposed the Tool Use specification, and OpenAI upgraded Parallel Function Calling, allowing the model to trigger multiple tool calls simultaneously in a single inference pass.78% 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functionResponse78% similarVerifiedAnthropic, Google, and OpenAI have each launched their own Agent frameworks: Claude Computer Use, Gemini Function Calling, and OpenAI Assistants API, respectively.75% similar
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