Embed model: Qwen/Qwen3-Embedding-0.6B LLM model: Qwen/Qwen3-4B-Instruct-2507

Stage 0 (2 checkpoints): stage0_final, stage0_step_5000 Stage 1 (2 checkpoints): stage1_final, stage1_step_10000 Stage 2 (4 checkpoints): stage2_final, stage2_step_10000, stage2_step_20000, stage2_step_24000 Stage 3 (3 checkpoints): stage3_final, stage3_step_10000, stage3_step_12000