How Braintrust turns customer requests into code with Codex

Braintrust, an observability and evaluation platform, has integrated Codex into its engineering workflow to bridge the gap between customer feature requests and actionable code. By using Codex alongside GPT-5.5, engineers can create preview branches in minutes, allowing them to iterate on ideas with customers in real time rather than waiting for traditional backlog prioritization. Founder and CEO Ankur Goyal emphasizes that the speed of Codex enables a novel development approach where engineers define problems through tests in sandbox environments, allowing the model to autonomously generate solutions and expanding the company's overall capacity for experimentation.

(Source：OpenAI)