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OpenAI: o1 reinforcement-trained reasoning system

Contribution grade

Vision, robotics, reasoning and inference systems · Human-designed research method or resource

Reference score230,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Trained language models with reinforcement learning for extended reasoning, reporting improvements with additional training and inference computation across coding and mathematical evaluations.

Scientific scope

Trained language models with reinforcement learning for extended reasoning, reporting improvements with additional training and inference computation across coding and mathematical evaluations. The training recipe is partly disclosed and benchmarks are provider evaluations. Pass@1, voting/reranking and specialized IOI models have different budgets and must not be conflated. Deliberative alignment is separately credited as a method.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. The training recipe is partly disclosed and benchmarks are provider evaluations. Pass@1, voting/reranking and specialized IOI models have different budgets and must not be conflated. Deliberative alignment is separately credited as a method.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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