OpenAI ships GPT-5.1 with faster tool-calling

The update focuses on latency and tool-use reliability rather than raw benchmark gains, with early adopters reporting fewer malformed function calls.

Jordan Lee

AI Correspondent

OpenAI ships GPT-5.1 with faster tool-calling

The update focuses on latency and tool-use reliability rather than raw benchmark gains, with early adopters reporting fewer malformed function calls.

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