A merged SFT dataset of almost 40k examples drawn from 11 frontier-model trace datasets.
messages list of {role, content} dicts (standard chat format).
source_model string identifying the originating model.
TeichAI/claude-4.5-opus-high-reasoning-250x
Claude Opus 4.5
250… See the full description on the dataset page:
https://huggingface.co/datasets/SultanR/frontier-reasoning-traces-sft.