dougalldeepmind/2026-09-01-empty-cot-supervision-chunk-only-702
Empty-CoT supervision mixture, principle-scoped (Table2 9,284 + chunk-only 702) field value experiment Arm: REPLACE each of the 702 principle-scoped difficult-advice rows' reasoning traces with the empty think marker, leaving prompt and answer byte-identical. The marker is masked whole by the existing generation-boundary rule, so the model is supervised on the visible answer and never learns to emit an empty close. Tests whether the reasoning was doing work AS… See the full description on the dataset page: https://huggingface.co/datasets/dougalldeepmind/2026-09-01-empty-cot-supervision-chunk-only-702.
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