CHIMERA: Compact Synthetic Data for Generalizable LLM Reasoning

Benchmark Model Rank Results
mathematical-reasoning-on-aime-2025Qwen3-4B-Thinking-2507 (4B) fine-tuned on Chimera (SFT+RL)–Accuracy: 80.7
mathematical-reasoning-on-aime24Qwen3-4B-Thinking-2507 (4B) fine-tuned on Chimera (SFT+RL)–Acc: 86.9
multiple-choice-question-answering-mcqa-on-gpqa-diamondQwen3-4B-Thinking-2507 (4B) fine-tuned on Chimera (SFT+RL)–Accuracy: 70.1
question-answering-on-humanity-s-last-exam-hleQwen3-4B-Thinking-2507 (4B) fine-tuned on Chimera (SFT+RL)–Accuracy: 9.0