Feynman
Open-source research agent that searches, reads papers and writes cited reports.
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About Feynman
Feynman is listed in our research category and is aimed at builders. Open-source research agent that searches, reads papers and writes cited reports. Pricing, as the maker states it: Open source. Maturity: Mature. We last checked the official link on 2026-10-16.
What is Feynman?
Feynman is an open-source research agent that reads papers, searches the web, writes research drafts, plans experiments and cites claims.
It searches alphaXiv, Semantic Scholar, OpenAlex, arXiv, PubMed, bioRxiv, Crossref, Hugging Face and the web, and some workflows write a provenance file of sources used. It sends anonymous usage data (not prompts or content) to PostHog.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: feynman.is.
Who is Feynman for?
Researchers who want cited literature reviews and drafts.
Feynman at a glance
- Open source: Yes (MIT License)
- GitHub: Companion-Inc/feynman · 10,007 stars (as of Oct 21, 2026)
Key features
- Searches many scholarly sources
- Cited drafts
- Provenance files
- Skills bundle for Codex and OpenCode
Feynman FAQ
What is Feynman?
Feynman is an open-source research agent that reads papers, searches the web, writes research drafts, plans experiments and cites claims.
Who is Feynman for?
Researchers who want cited literature reviews and drafts.
Is Feynman free?
Feynman's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Feynman open source?
Yes. Feynman is released under the MIT License, according to its GitHub repository.
What are alternatives to Feynman?
Similar tools include Vane, GPT Researcher, SurfSense, Claude Scientific Writer, MLE-Agent and LLM for Zotero.
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