o1-pro (2025-03-19)
OpenAI · o1-pro-2025-03-19
The o1 series models are trained through reinforcement learning to think and perform complex reasoning before answering. The o1-pro model uses more compute resources to think more deeply, providing consistently better answers. o1-pro is only available in the Responses API to support multi-turn model interactions before responding to API requests, and to support additional advanced API features in the future.
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o1-pro (2025-03-19) The vendor stopped serving it on 2026年10月23日.Relays still sell it under this name, but you may get a different model. If you still want it, start with a small trial or verify it first.







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