GPT Researcher

Verdict: Open-source autonomous research agent that searches the web and local docs and writes cited reports. For developers who want a self-hosted deep-research agent.

Free (Apache-2.0 open source; bring your own LLM/search API keys) · Official site: https://gptr.dev · source checked 2026-10-21 (HTTP 200)

GitHub repo · ★ 30.2k stars (as of 2026-10-21) · More open-source AI

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