Feynman
Overview
Open-source CLI research agent that reads papers, searches the web, drafts research outputs, plans experiments, and cites claims.
Feynman is an open-source AI research agent from Companion for scientific and technical research workflows. It runs from a REPL or shell as commands such as deep research, literature review, critique, reproducibility audit, replication planning, comparison, drafting, and bounded autoresearch. The agent gathers evidence from literature databases, web pages, PDFs, Hugging Face Hub, alphaXiv, and local documents, then links research claims back to sources.
Product overview
Capabilities, pricing and fit
Feynman is an open-source research agent focused on scientific-literature workflows, combining paper, web, code, PDF, and local-document evidence gathering with cited research drafts and review-oriented workflows.
Information as of October 10, 2026
What it can do
- Scientific research automation
The official page says Feynman reads papers, searches the web, writes research drafts, plans experiments, and cites research claims.[1]
- Research workflows
It exposes workflows including deep research, literature review, internal review, reproducibility audit, replication planning, ML recipe generation, source comparison, drafting, and bounded autoresearch.[1]
- Plan-first deep research
The /deepresearch workflow is described as a plan-first investigation across papers, web, and code, with parallel researchers when the topic needs them.[1]
- Evidence source coverage
The official page lists literature sources including Semantic Scholar, OpenAlex, arXiv, PubMed, Europe PMC, bioRxiv/medRxiv, and Crossref, plus alphaXiv, Hugging Face Hub, web research, PDFs, and local documents.[1]
- Cited outputs
Feynman states that research claims link to their sources and that its draft workflow can produce paper-style drafts with inline citations from findings.[1]
- Command-line and REPL operation
Workflows can run as slash commands in the REPL or as feynman workflow commands from the shell.[1]
- Agent-oriented architecture
The project describes four research roles: researcher, verifier, reviewer and writer.[2]
Where it fits best
- Researchers who need literature reviews from primary sources with consensus mapping.[1]
- Technical teams investigating topics across papers, web sources, and code using a plan-first deep-research workflow.[1]
- ML and reproducibility teams that want paper-to-code mismatch audits, replication plans, or ranked ML training recipes grounded in papers, datasets, docs, and code.[1]
- Writers of research drafts who want polished paper-style drafts with inline citations from findings.[1]
Pricing and availability
Open-source installation; budget separately for any model or infrastructure usage and confirm licence and support requirements.[1], [2]
Platforms: CLI, REPL, local shell[1]
Access: Open-source local installation, Standalone bundle via curl or PowerShell with bundled Node.js, npm installation using local Node.js[1]
Important considerations
Sources (3)
- Feynman — The open source AI research agentOfficial site · checked 2026-10-10
- Companion-Inc/feynman: The open source AI research agentGitHub · checked 2026-10-10
- Release Notes — Feynman DocsChangelog · checked 2026-10-10
Autonomy level
76/100
Our subjective rating of how independently the product carries out its documented tasks, considering the human setup, input, approval and review it needs. This is not a measured success rate.
Comparisons
Custom Comparisons
Some of the use cases of Feynman:
- Literature reviews from primary sources
- Plan-first deep research across papers, web, and code
- Research draft generation with inline citations
- Paper-to-code reproducibility audits
- Replication planning and experiment planning
- Comparing sources for agreements and conflicts
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Popularity level: 64%
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AI Agent Store · Specialist AI agentsFor scientific literature research teams
Your AI agent for cited research and experiment follow-through.
Exploring Feynman? For scientific literature research teams, your own AI agent can search relevant literature, reconcile study evidence, and maintain research updates. Start with a setup tailored to this work.
- ✓ Search relevant literature
- ✓ Reconcile study evidence
- ✓ Maintain research updates
Tailored starting setup. Chat on our site. See the workflow and monthly plan.