Bubble

AI app builder for full-stack web and mobile apps, historically no-code.

Bubble's AI team runs its app-building Agent on an eval-first workflow in Braintrust: metrics defined as scorers over datasets drawn from the real user base, with quality, latency, and inference cost tracked side by side so model swaps become measurable tradeoffs. They automate triage on top of it, letting coding agents scan a day of production traces and open PRs and tickets overnight.

bubble.io