GPT-5.5 (Non-reasoning)

FrontierClosed weightsTextDirect answers

GPT-5.5 family model by OpenAI — non-reasoning.

About the GPT-5.5 family

OpenAI's early-2026 frontier model, available from non-reasoning up to xhigh effort settings.

All GPT-5.5 models

How this one is configured

This configuration runs in non-reasoning mode (direct answers, faster and cheaper).

Who makes it

OpenAIUnited StatesMaker of ChatGPT and the GPT and o-series model families.

More from GPT-5.5

GPT-5.5

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