Buckets:

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asoba

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OpenResearcher-Dataset-bucket

🤗 HuggingFace ｜ Slack | WeChat

Overview

OpenResearcher is a fully open agentic large language model (30B-A3B) designed for long-horizon deep research scenarios. It achieves an impressive 54.8% accuracy on BrowseComp-Plus, surpassing performance of GPT-4.1, Claude-Opus-4, Gemini-2.5-Pro, DeepSeek-R1 and Tongyi-DeepResearch. It also demonstrates leading performance across a range of deep research benchmarks, including BrowseComp, GAIA, WebWalkerQA, and xbench-DeepSearch. We fully open-source the training and evaluation recipe—including data, model, training methodology, and evaluation framework for everyone to progress deep research.

OpenResearcher Training Dataset

Our training dataset consists of 96K high-quality long-horizon DeepResearch trajectories with 100+ turns generated by GPT-OSS-120B using its native browser tools. To enable scalable and cost-efficient data generation, we deploy a self-hosted search engine over carefully constructed ~11B-token corpus , completely eliminating reliance on external search APIs.

Format

Each row in the dataset contains the following fields:

• qid (int64): A unique identifier for each question or task.

• question (string): The original deepresearch question compiled from MiroVerse.

• answer (string): The final answer to the question.

• messages (list): A list of messages representing the GPT-OSS 120B deep research trajectory, including intermediate reasoning steps, tool calls, observations, and model responses throughout the problem-solving process.

Core Contributors

Zhuofeng Li

Dongfu Jiang

Xueguang Ma

Haoxiang Zhang

Ping Nie

Advisors

Wenhu Chen

Yu Zhang

Acknowledgements

Citation

@article{li2026openresearcher,
  title={{OpenResearcher: A Fully Open Pipeline for Long-Horizon Deep Research Trajectory Synthesis}},
  author={Li, Zhuofeng and Jiang, Dongfu and Ma, Xueguang and Zhang, Haoxiang and Nie, Ping and Zhang, Yuyu and Zou, Kai and Xie, Jianwen and Zhang, Yu and Chen, Wenhu},
  journal={arXiv preprint arXiv:2603.20278},
  year={2026}
}