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nao vs WrenAI: catalog facts
nao	WrenAI
Free Described by the developer as 100% open source.	Free The open-core CLI is free to install with pip.
macOS, Self-hosted, Command line	Command line
Agent context organized as plain files and YAML Connects warehouses, dbt, Looker and docs	Business definitions kept as reviewable YAML and Markdown in Git Connects to more than 20 databases and warehouses
Requires an existing data stack and model access Aimed at data teams rather than individuals	Designed around an external AI agent rather than a standalone chat interface Repository license is not clearly identified as OSI-approved
Downloadable app, Self-hosted	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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