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Function Calling Deep Dive - OpenAI, Anthropic, Gemini

The three frontier providers converged on the same tool-call loop in 2024 and then diverged on everything else. OpenAI uses tools and toolcalls. Anthropic uses tooluse and toolresult blocks. Gemini uses functionDeclarations and unique-id…

BuildPython (stdlib, schema translators) 1.5 h Paid plans
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