Not All Tokens Deserve Equal Credit: Counterfactual Sensitivity Credit Reallocation for Long-CoT Reasoning

Benchmark Model Rank Results
mathematical-reasoning-on-aime-2025CSCR (Qwen3-4B)–Accuracy: 68.3
mathematical-reasoning-on-aime-2026CSCR (Qwen3-4B)–Accuracy: 67.2
mathematical-reasoning-on-aime24CSCR (Qwen3-4B)–Acc: 74.4