We present a nineteen-arm, three-seed (42, 101, 7) study of Group Relative Policy Optimization (GRPO) on Qwen3-0.6B-Base across 64 primary training runs (3,422
We conduct a controlled 3-seed (`Seeds 42, 101, 7`) diagnostic audit of a critic-free 4-stage `GRPO` adaptation of Fast-and-Slow RLVR (`Thinker`, arXiv:2505.210