Company record
Braintrust
Updated November 2, 2026 · Presspool
Braintrust is an observability and evals platform for AI agents that traces production behavior and lets teams run experiments against datasets before shipping. braintrust.dev
Funding
- $80M Series B, announced February 17, 2026. Led by ICONIQ. Sources: braintrust.dev.
Whether AI names Braintrust
- On the AI infrastructure map: named or cited in 7 of 50 answers to Presspool's AI infrastructure questions on November 2, 2026 (ChatGPT 1 of 8, Claude 1 of 8, Perplexity 1 of 8, Gemini 1 of 8, Copilot 1 of 8, Google AI Mode 1 of 6, Google AI Overviews 1 of 4). See the map. Of the 54 companies on the map, Braintrust ranked 11th by answers naming or citing it in that sample. The other companies AI names most on AI infrastructure questions: Lambda (17 of 50), Crusoe (13 of 50), Together AI (11 of 50), Fireworks AI (10 of 50), Groq (10 of 50), LangChain (10 of 50) and Modal (10 of 50). Most often named in the same answers: LangChain (7), Firecrawl (2), Fiddler AI (1), Patronus AI (1), Respan (1).
- Machine Relations Index: Cited in 48 of 36,189 Index answers, May 10, 2026 to November 6, 2026.
Week by week
Answers that named or cited Braintrust in each weekly sample of Presspool's AI infrastructure questions, by the Monday of the sample week. A row is added every week.
| Week of | AI infrastructure |
|---|---|
| September 21, 2026 | 6 of 39 |
| October 5, 2026 | 4 of 48 |
| October 12, 2026 | 6 of 50 |
| October 19, 2026 | 7 of 56 |
| October 26, 2026 | 6 of 53 |
| November 2, 2026 | 7 of 50 |
Sources AI cites when it names Braintrust
Presspool asked its 8 AI infrastructure questions on November 2, 2026; 7 of the 50 answers named or cited Braintrust, on ChatGPT, Claude, Perplexity, Gemini, Copilot, Google AI Mode and Google AI Overviews. The sites those 7 answers cited most:
- braintrust.dev: 3 of 7 answers
- langchain.com: 3 of 7 answers
- comet.com: 2 of 7 answers
- firecrawl.dev: 2 of 7 answers
- groundcover.com: 2 of 7 answers
- langfuse.com: 2 of 7 answers
- mintlify.com: 2 of 7 answers
- analyticsvidhya.com: 1 of 7 answers
- arize.com: 1 of 7 answers
- ciopages.com: 1 of 7 answers
Related records
Also on the AI infrastructure map: Arcade, Baseten, Clockwork.io, Crusoe, Daytona, DeepInfra, Encord, Exa, fal, Fiddler AI, Firecrawl, Fireworks AI and 41 more on the map.
ICONIQ, which led this round, is named as an investor in Legora ($550 million Series E, October 21, 2026) and Pigment ($250 million Series E, October 21, 2026).