// Workers AI · dad joke modeWhat did the braintrust say to the idea? You're a cerebral success.
| Type | Private |
|---|---|
| Industry | Artificial intelligence |
| Founded | August 2023 |
| Founder | Ankur Goyal |
| Headquarters | , U.S. |
Area served | Worldwide |
Key people | Ankur Goyal (CEO) |
| Products | AI evaluation and observability software |
| Website | www |
Braintrust is an American artificial intelligence software company that develops evaluation and observability tools for large language model (LLM) applications and AI systems.[1][2] The company was founded in 2023 by Ankur Goyal and is headquartered in San Francisco, California.[3]
History
[edit]Braintrust was founded in August 2023 by Ankur Goyal, a co-founder of Impira and former head of machine learning platform at Figma.[1][3] The company was initially incubated by investor Elad Gil.[3]
In December 2023, Braintrust raised US$5.1 million in seed funding led by Greylock Partners.[2][4] In October 2024, the company raised US$36 million in a Series A funding round led by Andreessen Horowitz, valuing the company at approximately US$150 million.[3][5][6]
In February 2026, Braintrust raised US$80 million in a Series B funding round led by ICONIQ Capital, with participation from existing investors including Andreessen Horowitz and Greylock.[7][8][9][10] That month, the company held its first user conference, Trace, at the California Academy of Sciences in San Francisco.[11][8]
Technology
[edit]Braintrust develops software for evaluating, monitoring, and improving AI model outputs and application performance.[1][2] The company developed a database architecture known as Brainstore for storing and querying AI observability data.[12][8] Braintrust also developed tools including Loop, an AI-assisted workflow system for generating prompts and evaluation datasets, and Braintrust Gateway, a proxy layer for routing and monitoring AI model calls.[13][14][15] Companies publicly associated with the platform include Notion, Stripe, and Airtable.[16][8][9]
References
[edit]- 1 2 3 Loizos, Connie (September 28, 2023). "The hot new thing: AI platforms that stop AI's mistakes before production". TechCrunch. Retrieved July 23, 2026.
- 1 2 3 "Braintrust Data wants to make enterprise AI better with faster evaluations". VentureBeat. December 13, 2023. Retrieved July 23, 2026.
- 1 2 3 4 Konrad, Alex (October 8, 2024). "Notion And Stripe Trust This Year-Old Startup To Make Sure Their AI Tools Work". Forbes. Retrieved July 23, 2026.
- ↑ "AI evaluation startup Braintrust raises $5.1 million from Greylock". Business Insider. December 13, 2023. Retrieved July 23, 2026.
- ↑ "Braintrust Raises $36M in Series A Funding". FinSMEs. October 8, 2024. Retrieved July 23, 2026.
- ↑ "How Braintrust Secured $36M to Solve AI's Biggest Problem That No One Talks About". AIM Media House. Retrieved July 23, 2026.
- ↑ Metinko, Chris (February 17, 2026). "Exclusive: AI observability startup raises $80M at an $800M valuation". Axios. Retrieved July 23, 2026.
- 1 2 3 4 Wheatley, Mike (February 17, 2026). "Braintrust lands $80M funding round to become the observability layer for AI". SiliconANGLE. Retrieved July 23, 2026.
- 1 2 "Braintrust: $80 Million Series B Raised To Power Production AI Infrastructure". Pulse 2.0. February 2026. Retrieved July 23, 2026.
- ↑ "Braintrust raises $80M Series B led by ICONIQ for AI observability". Tech Funding News. February 2026. Retrieved July 23, 2026.
- ↑ Franceschi-Bicchierai, Lorenzo (May 6, 2026). "AI evaluation startup Braintrust confirms breach, tells every customer to rotate sensitive keys". TechCrunch. Retrieved July 23, 2026.
- ↑ "Braintrust lands $80M funding round to become the observability layer for AI". AI Market Watch. Retrieved July 23, 2026.
- ↑ "Braintrust Unveils Loop: Automating AI Model Evaluation". StartupHub.ai. 2025. Retrieved July 23, 2026.
- ↑ "Evals Reimagined: Braintrust's Engineering Approach to AI Development". StartupHub.ai. 2025. Retrieved July 23, 2026.
- ↑ "LLM API Gateway Routing Guide". OpticFlux. Retrieved July 23, 2026.
- ↑ "AI startups will need 'quality of revenue' to raise in 2025, seed VCs warn". TechCrunch. November 5, 2024. Retrieved July 23, 2026.