Training two LoRA adapters competitively against each other, where each reads the other's solution summary and is rewarded for out-solving it, doubles GRPO's pass@1 on hard math while shortening reasoning traces.
The 2026 AI Index Report, Chapter 2: Technical Performance
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Agon: Competitive Cross-Model RL with Implicit Rival Grading of Reasoning
Training two LoRA adapters competitively against each other, where each reads the other's solution summary and is rewarded for out-solving it, doubles GRPO's pass@1 on hard math while shortening reasoning traces.