Zone of Proximal Policy Optimization: Teacher in Prompts, Not Gradients

Benchmark Model Rank Results
mathematical-reasoning-on-aime-2025ZPPO (Qwen3.5-2B)–Accuracy: 26.7
mathematical-reasoning-on-aime-2026ZPPO (Qwen3.5-2B)–Accuracy: 40.0
multi-task-language-understanding-on-mmlu-proZPPO (Qwen3.5-2B)–Accuracy: 68.2
multimodal-reasoning-on-mmmu-proZPPO (Qwen3.5-2B)–Accuracy: 53.2
multiple-choice-question-answering-mcqa-on-gpqa-diamondZPPO (Qwen3.5-2B)–Accuracy: 60.6
question-answering-on-humanity-s-last-exam-hleZPPO (Qwen3.5-2B)–Accuracy: 5.1
video-question-answering-on-mmvuZPPO (Qwen3.5-2B)–Accuracy: 59.0
video-question-answering-on-mvbenchZPPO (Qwen3.5-2B)–Avg.: 62.7
visual-question-answering-on-mm-vetZPPO (Qwen3.5-2B)–GPT-4 score: 77.1