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Braintrust

https://www.braintrust.dev/ Research Team Data
Active

AI evaluation and observability platform for testing, monitoring, debugging, and improving LLM apps and AI agents.

Braintrust provides datasets, experiments, evals, traces, production monitoring, prompt testing, CI/CD evaluation workflows and human annotation/review tooling for AI teams shipping LLM and agentic features.

Positioning

AI observability platform for building quality AI

Key facts

HQ location
San Francisco, CA, USA
Founded
2023
Employee range
51-200 (51-200)
Funding stage
Series B
Company type
Private (Private)
Pricing model
Freemium Subscription Usage Based (Usage-based SaaS with self-serve/free options and enterprise plans)
Last updated
Jun 21, 2026

Revenue estimate

Unknown / not publicly disclosed

Valuation estimate

$800M reported Series B valuation

Investments

$80M Series B announced Feb 2026 led by ICONIQ; prior investors include a16z, Greylock and Elad Gil

Target customers

AI engineering, product, ML platform and LLM application teams

Key competitors

LangSmith, Galileo, Arize AI, Patronus AI, Humanloop

Known customers

Unknown / customer page available but not normalized in this batch

Classification (raw research text)

Core focus
LLM evaluation and AI observability
Core industry
Horizontal AI infrastructure
Core category
LLM evaluation / AI observability platform

Shown verbatim from the research spreadsheet — deriving structured segment/industry tags from this text is a future phase.

Attribute breakdown

  • AI Workflows Secondary feature
  • Agent Builder / Agent Configuration Secondary feature
  • Multi-agent Orchestration / Runtime Secondary feature
  • System / API Integration Secondary feature
  • Prompt Management / Prompt Engineering Primary focus
  • Retrieval-Augmented Generation Secondary feature
  • AI / LLM Data Pipeline Secondary feature
  • Document AI / Document Processing Secondary feature
  • Model Deployment / Inference Infrastructure Secondary feature
  • Traditional Machine Learning Secondary feature
  • AI Quality Assurance / LLM Evaluation Primary focus
  • AI Observability / Monitoring Primary focus
  • AI Security / Guardrails Secondary feature
  • Data Privacy / PII / Confidential AI Secondary feature
  • AI Governance / Policy Management Secondary feature
  • AI Risk / Compliance Secondary feature
  • AI Asset Inventory / Model Registry Secondary feature
  • Human-in-the-Loop Review / Feedback Primary focus
  • Text Chatbots / Conversational Assistants Secondary feature
  • Voice AI Agents Secondary feature
  • Analytics / BI / Decision Intelligence Secondary feature
Show all 32 attributes
  • AI Workflows Secondary feature
  • AI Automation / Business Process Automation Not emphasized
  • AI Fine-tuning / Custom Model Training Not emphasized
  • Agent Builder / Agent Configuration Secondary feature
  • Multi-agent Orchestration / Runtime Secondary feature
  • System / API Integration Secondary feature
  • Prompt Management / Prompt Engineering Primary focus
  • Retrieval-Augmented Generation Secondary feature
  • Graph RAG / Knowledge Graph Retrieval Not emphasized
  • Enterprise Search / Knowledge Management Not emphasized
  • AI / LLM Data Pipeline Secondary feature
  • Document AI / Document Processing Secondary feature
  • Model Deployment / Inference Infrastructure Secondary feature
  • Traditional Machine Learning Secondary feature
  • AI Quality Assurance / LLM Evaluation Primary focus
  • AI Observability / Monitoring Primary focus
  • AI Security / Guardrails Secondary feature
  • Data Privacy / PII / Confidential AI Secondary feature
  • AI Governance / Policy Management Secondary feature
  • AI Risk / Compliance Secondary feature
  • AI Asset Inventory / Model Registry Secondary feature
  • Human-in-the-Loop Review / Feedback Primary focus
  • Call Transcription / Speech-to-Text Data Capture Not emphasized
  • Conversation Intelligence / Speech Analytics Not emphasized
  • Text Chatbots / Conversational Assistants Secondary feature
  • Voice AI Agents Secondary feature
  • Voice Infrastructure / STT / TTS Not emphasized
  • AI for Customer Experience / Support Automation Not emphasized
  • Sales / Revenue Intelligence Not emphasized
  • Analytics / BI / Decision Intelligence Secondary feature
  • Enterprise App / Internal Tool Builder Not emphasized
  • Vertical-Specific AI Not emphasized