task_categories:text-generation annotations_creators:machine-generated language:en language:zh language:ko language:ja language:ru language:es license:apache-2.0 size_categories:1K<n<10K format:json modality:text library:datasets library:pandas library:polars library:mlcroissant arxiv:2603.07267 region:us reasoning trace-inversion synthetic-data chain-of-thought distillation claude-opus negentropy qwen unsloth