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o1-mini

ReasoningClosed weightsText

o-series family model by OpenAI.

About the o-series family

OpenAI's dedicated reasoning line (o1, o3, o4-mini, plus pro/mini variants) — models trained with reinforcement learning to 'think' in long hidden chains before answering. o1 (2024) pioneered the approach; o3/o4 refined it.

All o-series models

Who makes it

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

More from o-series

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