Braintrust

Braintrust is a small team of builders working on developer tooling for AI. Its platform integrates evaluations into mainstream engineering workflows, allowing teams to iterate, evaluate and ship AI applications by turning production data into better results with each release. Technical domains include LLM evaluation, real-time data pipelines, AI developer tooling, and observability and testing for AI/ML systems.

The single product, the Braintrust platform, is designed around the premise that evaluations should be part of everyday engineering rather than an afterthought. It includes tools for real-time collaborative review of results and UI-based prototyping, and serves the AI/LLM development, software engineering and developer-tools sectors.

The working culture, as the company describes it, emphasises velocity without sacrificing quality: engineers ship features daily, product managers prototype directly in the UI, and the team reviews results together in real time. Stated values include a focus on collaborative iteration, a shared understanding of what works and what does not, and attention to the developer community.