OpenThoughts-114k
Open ThoughtsOpenThoughts-114k is a synthetic reasoning dataset of roughly 114,000 examples spanning math, science, code, and puzzles, built by curating problem sets and generating reasoning traces with DeepSeek-R1 followed by correctness verification. It was created by the Open Thoughts team and documented in arXiv 2506.04178. It was used to train the OpenThinker-7B and OpenThinker-32B models.
Verified live 2026-06-22 via primary sources. Apache-2.0 licensed, ungated, with dataset card, code repo, and paper.
Openness
5 high confidence- license
- apache-2.0
Apache-2.0 licensed, ungated, with dataset card, code repo, and paper.
- https://huggingface.co/datasets/open-thoughts/OpenThoughts-114k recorded 2026-06-22
Apache-2.0 license, dataset card, GitHub and arXiv links
Adoption
3 high confidence73,774 monthly downloads on Hugging Face, graded on the training-corpus bands.
- https://huggingface.co/api/datasets/open-thoughts/OpenThoughts-114k recorded 2026-07-04
downloads field = 73,774 (30-day)
Capability
3 high confidenceStrong early-2025 reasoning results (OpenThinker-32B led open-data MATH500/GPQA-D) but superseded by OpenThoughts3-1.2M.
- https://huggingface.co/open-thoughts/OpenThinker-32B recorded 2026-07-04
OpenThinker-32B hits MATH500 90.6 / GPQA-D 61.6, leading open-data peers
- https://www.openthoughts.ai/blog/ot3 recorded 2026-07-04
OpenThoughts3-1.2M is the recommended SOTA open-data successor
Unchanged since 2026-07-04 (last edited, not re-checked)