Post-trained Qwen3-4B tops Jane Street's MegaGem, beating GPT-5.5
tokenbender · x · 2026-08-14
A developer shares how post-training Qwen3-4B-Instruct made it rank #1 on Jane Street's auction game MegaGem, surpassing GPT-5.5 and Claude Opus 4.8, but self-play RL wasn't the key.
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