Meta-Harness v1b: Policy x Harness Co-Evolution
Collection
Co-evolution GRPO (verl, Qwen3.5): shared policy = grader/solver + harness-editor. IMO/paper-review/math. bf16 checkpoints + evolved scaffolds. • 20 items • Updated
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Harnesses (scaffolds) evolved by the Proposer during co-evolution, plus reconstructed top-K per domain.
coevo_scaffolds/ — harnesses promoted during training (best-of-N per step).eval_*_topk/ — top-K scaffolds reconstructed from rollout dumps, ranked by proposer accuracy.
See the model Collection: https://huggingface.co/collections/hyunseoki/meta-harness-v1b-policy-x-harness-co-evolution-6a5c9877f74920e8922808bc