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Laminar vs Braintrust: catalog facts
Laminar	Braintrust
Free Free and open source under Apache 2.0; a managed platform is offered at laminar.sh.	Freemium Self-serve sign-up with paid plans listed on the pricing page.
Web, Self-hosted	Web
Automatic tracing for many agent frameworks and model APIs Evals that run locally or in CI with a comparison UI	Real-time tracing of prompts, responses and tool calls Evals scored by LLMs, code or humans
Requires adding its SDK to your application Self-hosting involves running several services including ClickHouse	Hosted service that requires an account Aimed at teams building LLM products, not individual users
Self-hosted, Hosted service	Hosted service
Open source	Closed source
License: Apache-2.0	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 October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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