Bc-AI/SFT-Ultra

Mega Merged Reasoning SFT Dataset Auto-merged from 44 source datasets → 3,681,880 rows. Schema Every row is: { "messages": [ {"role": "system", "content": "..."}, {"role": "user", "content": "..."}, {"role": "assistant", "content": "<think>\n...\n</think>\n\nFinal answer..."} ], "thinking": "extracted chain-of-thought (or null)", "source": "org/dataset-name" } messages — standard OpenAI / TRL chat format thinking — isolated CoT when… See the full description on the dataset page: https://huggingface.co/datasets/Bc-AI/SFT-Ultra.

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