GPT Researcher
Leading#1 in Open sourcehigh confidence
The recognized open-source deep-research agent (28k★) — plans, searches, reads many sources, and writes a long, cited report; ships as a Python package and full web app.Our read
Why it ranks #1
The cited GitHub source records roughly 28k stars, and independent open-source agent roundups consistently treat GPT Researcher as the reference implementation for autonomous cited reports.Here is the catch
Self-hosting requires API keys, infrastructure, and cost controls
Long research runs can consume substantial model and search credits
Source selection and citation accuracy still require review
Does this well
Mature open-source project with many integrations and deployment paths
Produces structured reports with traceable sources
Can be customized for private or specialist research workflows
Pricing
Checked by hand on 2026-07-23. Prices in this category change often — if this looks wrong, it probably is.
Key features
Autonomous research planningMulti-source web retrievalCited report generationPython package and web application
Sources we read
Quick facts
More in this area
The rest of the Open source column.- 2STORM (Stanford OVAL)Stanford's LLM knowledge-curation system (30.3k★) — researches a topic and generates a full-length, Wikipedia-style report with citations; Co-STORM adds human-in-the-loop.
- 3nanoAgentTeam/research-clawSelf-hosted Python agent for academic work: manages LaTeX and Overleaf projects, searches arXiv and PubMed, tracks conference deadlines, reachable from Telegram or Feishu.
- 4dralkh/seeraiZotero 9 plugin that chats with your library, searches eleven scholarly databases at once, runs OCR, and drives PRISMA systematic reviews.
- 5zoharbabin/web-researcher-mcpMCP server giving Claude or Cursor 37 research tools, with domain allowlists and Crossref checks that catch dead links and retractions.
- 6blurryface13/asteria-agentSelf-hosted deep research app that splits a question into sub-queries, searches the web, and exports cited reports; FastAPI, LangGraph, Next.js, per-user Postgres.
- 7hxcm-cre/scholar-agentConversational literature assistant that searches arXiv and your Zotero library, reads full texts in a side panel, and numbers citations automatically.