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GPT Researcher vs STORM: catalog facts
GPT Researcher	STORM
Free Free and open source; you pay for any LLM or search APIs you connect.	Free Free and open source; language model and search API costs are your own.
Web, Self-hosted, Command line	Command line
Writes cited reports from web and local sources Works with many LLM providers	Produces long, cited reports from a single topic Multi-perspective questioning for broader coverage
Requires API keys and some setup Report quality depends on the model and sources used	Needs Python setup and API keys for models and search A research project, with limited polish for everyday users
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.