README.md

metadata

license: apache-2.0
language:
  - en
task_categories:
  - text-generation
  - question-answering
tags:
  - reasoning
  - chain-of-thought
  - distillation
  - claude
  - opus
  - math
  - code
  - sft
size_categories:
  - 1K<n<10K

Opus-4.6-Reasoning-2160x

2,160 high-quality reasoning traces generated by Claude Opus 4.6 via OpenRouter, covering mathematics, competitive programming, logic, science, and language tasks. Each example includes the full problem, an extended chain-of-thought, and a final solution — making the dataset suitable for supervised fine-tuning, chain-of-thought distillation, and reasoning-capability transfer to smaller models.

Originally generated as a batch of 3,305 examples; 1,145 were removed during quality filtering (refusals, empty responses, truncated problems). The 2,160 remaining examples are all substantive, complete reasoning demonstrations.