CHIMERA is a compact but high-difficulty synthetic reasoning datasetwith long Chain-of-Thought (CoT) trajectories and broad STEM coverage, designed for reasoning post-training. All examples are fully LLM-generated and automatically verified without human annotation.
Recent reasoning advances rely heavily on high-quality… See the full description on the dataset page:
https://huggingface.co/datasets/TianHongZXY/CHIMERA.
