Compare software

STORM vs GPT Researcher: catalog facts
STORM	GPT Researcher
Free Free and open source; language model and search API costs are your own.	Free Free and open source; you pay for any LLM or search APIs you connect.
Command line	Web, Self-hosted, Command line
Produces long, cited reports from a single topic Multi-perspective questioning for broader coverage	Writes cited reports from web and local sources Works with many LLM providers
Needs Python setup and API keys for models and search A research project, with limited polish for everyday users	Requires API keys and some setup Report quality depends on the model and sources used
Downloadable app	Downloadable app, Self-hosted
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.