leonli66/stage3-final-mixture-cot50

Stage 3 Final Mixture — 50% CoT Compression This is a deterministic capability-preserving rewrite of leonli66/stage3-final-mixture for LCLM Stage-3 post-training. Only the reasoning_data and dolci_think subsets change. Their compression_prompt is the ordinary prompt. A deterministic 50% arm keeps the complete assistant target as ordinary SFT; the other arm wraps the inferred reasoning prefix in <|memory_start|>...<|memory_end|> while keeping the final answer trainable. All… See the full description on the dataset page: https://huggingface.co/datasets/leonli66/stage3-final-mixture-cot50.

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