capital · May 21, 2026
Braintrust Featured in AI Startup Funding News for $80M Series B Observability Round
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Braintrust received an $80 million Series B round announced for AI observability in the May 5-6 2026 cluster. The funding targets AI reliability monitoring and evaluation at scale for deployed AI systems focusing on drift hallucination detection and production evals. Braintrust builds the equivalent of APM for AI agents and LLM-powered products. Investors were not yet fully disclosed on the page updated May 18 2026. The round positions Braintrust alongside Bluefish and Mintlify in confirming funding for AI instrumentation tools at growth-stage multiples.
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