Unverified50% confidenceFactExact time
Anthropic的Tool Use与OpenAI的Function Calling在嵌套结构和并行调用表达上存在差异，两者SSE流式响应字段命名和分块策略不同
1
Sources
50%
Confidence
Long-term
Relevance
7/21/2026
First Seen
Sources
Related Claims
Partially 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.77% similarUnverifiedTraditional Function Calling lacks a unified standard, with different model providers (OpenAI, Anthropic, Zhipu, etc.) having different interfaces and formats.76% similarUnverifiedDifferent models use different function-calling formats: OpenAI uses the tools parameter, Anthropic uses tool_use blocks, and open-source models each have their own template formats.76% similarUnverified当Thinking模式和工具调用同时启用时，OpenAI格式会强制返回推理过程导致兼容性问题，而Anthropic格式能确保两种能力稳定共存75% similarVerifiedOpenAI 的 Function Calling 和 Anthropic 的 Tool Use API 都是 ReAct 模式的标准化实现75% similar
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