🧠 Parallel-R1-Unseen_Step_200

Mid-Training Checkpoint of Parallel-R1: Towards Parallel Thinking via Reinforcement Learning
Stage: After 200 RL steps via alternating rewards — showing the adaptive parallel reasoning ability and serve as structure exploration stage.

This checkpoint aims to help you reproduce experimental results in Section 4.5: Extra Bonus: Parallel Thinking as a Mid-Training Exploration Strategy for RL Training.