OpenUI: Open-Source Generative UI Framework Cuts Token Usage by Up to 67% vs JSON
tom_doerr · x · 2026-09-12
Thesys open-sourced OpenUI, a full-stack, renderer-agnostic generative UI framework built around OpenUI Lang, a compact streaming-first language for describing UI components that uses up to 67% fewer tokens than JSON. It ships with official React support, built-in component libraries and ready-made chat interfaces, plus community integrations, docs and a playground. The repo has 8.8k stars and 629 forks, and the team notes it has no official cryptocurrency or token.
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