The post-training inference model SU-01 achieves gold medal performance in Olympiad-level questions

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AIMPACT News, May 16 (UTC+8), a new paper proposes a systematic approach to convert post-training inference models into Olympic-level problem solvers and trains the SU-01 model based on this method.
The approach includes three steps: first, supervised fine-tuning using a reverse perplexity curriculum to instill strict proof search and self-checking behaviors;
then, expanding these behaviors through two-stage reinforcement learning (transitioning from verifiable reward reinforcement learning to proof-level reinforcement learning);
finally, improving performance through scaling during testing.
The research team applied the method to a 30B-A3B backbone model, using approximately 340k sub-8K token trajectories for supervised fine-tuning, followed by 200 steps of reinforcement learning to obtain SU-01.
This model can perform stable reasoning on difficult problems, with trajectory lengths exceeding 100k tokens, achieving gold medal levels in competitions such as IMO 2025/USAMO 2026 and IPhO 2024/2025, and demonstrating generalization capabilities beyond mathematics and physics in scientific reasoning.
(Source: InFoQ)
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SeaSaltMintCandy
· 20h ago
Does the name SU-01 have any meaning, or was it just randomly chosen?
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StainedGlassSolarArray
· 21h ago
Post-training transformation of this idea, other labs should follow suit soon.
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GateUser-d2929483
· 21h ago
If this work is real, the contest problem data will need to be increased in price.
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StopRaisingGasFees.
· 21h ago
Can 200-step reinforcement learning converge? Or is it just an publicly available number?
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MetalFrameBookPageCross
· 21h ago
What exactly does two-stage RL extension refer to? Are there any details?
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GateUser-7a050ee5
· 21h ago
Waiting for open source or detailed technical reports, marking it for now.
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GateUser-f4b3df7a
· 21h ago
How is the self-check mechanism implemented, and does it have a separate training objective?
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GateUser-e3701961
· 21h ago
During testing, is scale boost self-consistency or another technique?
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LittleBitcoinInTheReflection
· 21h ago
A 30B-A3B scale can achieve this, with efficiency much higher than GPT-4.
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HalfLifeHodler
· 21h ago
The ability to generalize across domains is the most worth paying attention to; don't let it be just overfitting on benchmarks again.
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