Unverified60% confidenceFactExact time
Tool-calling capability was first introduced into the mainstream large model ecosystem by OpenAI in June 2023 in the form of Function Calling, subsequently released by Anthropic's Claude under the name Tool Use, and later supported by Google's Gemini as well.
2
Sources
60%
Confidence
Long-term
Relevance
7/22/2026
First Seen
Sources
Related Claims
VerifiedOpenAI first introduced the Function Calling feature in June 2023, after which Anthropic's Claude and Google's Gemini also successively added support.84% similarUnverifiedOpenAI 于 2023 年率先将工具调用能力标准化，随后 Claude、Gemini 等主流模型相继跟进80% similarVerifiedAnthropic and OpenAI successively released models supporting tool use and multi-step reasoning around 2024.78% similar
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