Same task, two stacks, AI coding agents with no extra tooling:
Codex: Angular 25%, Vaadin 80%
Claude Code: Angular 60%, Vaadin 85%
VaadinBench Petclinic task, 20 trials per cell. One task pair, small samples. Full results:
vaadin.github.io/vaadinbench-re…
The Open-Source UI framework for building web apps 100% in Java.

