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MLflow vs Braintrust: catalog facts
MLflow	Braintrust
Free Free and open source.	Freemium Self-serve sign-up with paid plans listed on the pricing page.
Web, Self-hosted, Command line	Web
Tracing built on OpenTelemetry, independent of LLM provider 50+ built-in evaluation metrics and LLM judges	Real-time tracing of prompts, responses and tool calls Evals scored by LLMs, code or humans
Broad feature set takes time to learn Running it for a team means hosting and maintaining a server yourself	Hosted service that requires an account Aimed at teams building LLM products, not individual users
Downloadable app, Self-hosted	Hosted service
Open source	Closed source
License: Apache-2.0	License not stated
No account 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.