Compare software

Opik vs Braintrust: catalog facts
Opik	Braintrust
Free The open-source platform is free to self-host.	Freemium Self-serve sign-up with paid plans listed on the pricing page.
Web, Self-hosted	Web
Tracing, automated evaluations and dashboards together Covers RAG systems and agent workflows	Real-time tracing of prompts, responses and tool calls Evals scored by LLMs, code or humans
Self-hosting means running several services yourself Contributors must sign a CLA	Hosted service that requires an account Aimed at teams building LLM products, not individual users
Self-hosted	Hosted service
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 1, 2026

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