ansulev/

gpt-5.4-xhigh-reasoning-2k

A premium-quality reasoning dataset containing 2,007 elite samples distilled from GPT-5.4 XHIGH (the highest reasoning effort tier of GPT-5.4). Each sample features deep, multi-step Chain-of-Thought traces that are significantly longer and more rigorous than standard GPT-5.4 outputs. This dataset is specifically designed for Supervised Fine-Tuning (SFT) to transform general-purpose language models into powerful reasoning models with explicit… See the full description on the dataset page: https://huggingface.co/datasets/ansulev/gpt-5.4-xhigh-reasoning-2k.