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Mathematical Reasoning on OpenMathInstruct 2 (val)

65.19Pass@1GRPO Baseline
62.8563.457564.06564.6725Mar 25, 2026

Evaluation results

MethodLinks
GRPO BaselineBase model=Qwen2.5-Math-1.5B-Instruct, Training steps=2000, Hardware=8×H200 GPUs, Validation samples=20482026.0365.1977.4982.28
HDPOTeacher type=frozen, λ=0.01, Base model=Qwen2.5-Math-1.5B-Instruct, Training steps=2000, Hardware=8×H200 GPUs, Divergence=JSD with global token-count normalization2026.0365.1978.1282.18
HDPOTeacher type=drifting, λ=0.01, Base model=Qwen2.5-Math-1.5B-Instruct, Training steps=2000, Hardware=8×H200 GPUs, Divergence=JSD with global token-count normalization2026.0365.1478.6182.71
HDPOTeacher type=frozen, λ=0.1, Base model=Qwen2.5-Math-1.5B-Instruct, Training steps=2000, Hardware=8×H200 GPUs, Divergence=JSD with global token-count normalization2026.0363.0478.1283.98
HDPOTeacher type=drifting, λ=0.1, Base model=Qwen2.5-Math-1.5B-Instruct, Training steps=2000, Hardware=8×H200 GPUs, Divergence=JSD with global token-count normalization2026.0362.9478.5683.64