Braintrust
Braintrust positions itself as the active observability platform for agents, combining trace observability, evals, discovery, and deployment support for production AI systems. It claims to help teams ship quality agents at scale and emphasizes monitoring, evaluation, and regression prevention.
Company profile
Overview
AI observability and evaluation platform for agents and LLM applications.
Braintrust appears to be a productized AI observability and evaluation platform focused on tracing production agents, running evals, discovering failure patterns, and improving AI quality over time. Public materials emphasize observability, evaluations, datasets, prompts, human review, and enterprise deployment options such as SaaS, BYOC, and self-hosting. Evidence suggests the company is a software platform rather than a services firm, with limited public indication of custom consulting as the core offer.
At a glance
Key facts
- HQ location
- San Francisco, California
- Founded
- 2023
- Employee range
- 51-200LinkedIn snippet indicates 51-200 employees; some third-party sources suggest counts around 111-169, but the most direct public snippet found was 51-200.
- Funding stage
- Series A
- Company type
- Private
- Last updated
- Pricing model
- Custom QuoteSubscriptionUsage BasedPublic pricing includes a free Starter plan, a Pro plan at $249/month, and custom Enterprise pricing. Pricing also includes usage components such as model credits, processed data, and scored outputs.
Business context
Financials
- Revenue estimate
- Unknown
- Valuation estimate
- Unknown
- Investments
- Braintrust announced a $36M Series A on 2024-10-08, bringing total funding to $45M at that time; the round was led by Andreessen Horowitz with participation from several existing and strategic investors. A later 2026 blog post indicates a Series B led by ICONIQ and says Braintrust raised $80M in that round, but the exact post-date and total funding at that point should be treated as potentially stale until independently verified.
Market context
Relationships
- Target customers
- AI-native teams, product and engineering teams building and operating agents, and enterprise teams running production AI systems.
- Key competitors
- LangSmith, Arize/Phoenix, Weights & Biases, Humanloop, Galileo, WhyLabs, TruLens, and adjacent AI observability/evaluation or governance tools.
- Known customers
- Notion, Stripe, Vercel, Airtable, Instacart, Zapier, Coda, The Browser Company, and Graphite were mentioned in Braintrust’s own Series A blog post and homepage case-study references.
Source context
Classification (raw research text)
- Core focus
- AI observability, evals, trace analysis, agent quality improvement, and production AI infrastructure.
- Core industry
- Artificial intelligence software / developer tools.
- Core category
- AI observability and evaluation platform.
Shown verbatim from the research spreadsheet — deriving structured industry tags from this text is a future phase.
Market taxonomy