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Braintrust
Braintrust is the AI observability platform helping teams measure, evaluate, and improve AI in production. By connecting evals and observability in one workflow, teams at Notion, Stripe, Zapier,…
Braintrust
Braintrust is the AI observability platform helping teams measure, evaluate, and improve AI in production. By connecting evals and observability in one workflow, teams at Notion, Stripe, Zapier,…
TL;DR
What they do: AI observability and evaluation platform for production AI
Notable product pieces: SDKs (multiple languages), Brainstore (AI traces DB), automated eval tooling
Customers / users: Used by teams at Notion, Stripe, Zapier, Vercel, and Ramp
Team size (evidence): 116 employees
Recent funding: Series B $80M led by ICONIQ (Feb 2026)
Company Overview
Problem Domain
AI observability, evaluation, and production quality for AI systems
Industry
AI infrastructure / observability
Tech Stack
Funding Track Record
$36M
$80M
Investor Signal
“Includes investors such as Greylock, Andreessen Horowitz, ICONIQ, Elad Gil, Basecase Capital, Datadog, Databricks Ventures, Greg Brockman, Guillermo Rauch”
Founders
What we do
Join the Team
Startup jobs. A lot of them.
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