Thesys

We’re building the UI for AI.

At Thesys we have built C1, the first production-ready Generative UI API. It lets AI products respond with fully interactive UI in real time. With C1, instead of plain-text answers, agents deliver dashboards, forms, lists, and other rich interfaces that adapt to each query and context.

Most AI products still rely on text, which hurts engagement, or teams spend countless hours wiring LLM output to brittle UI templates. Doing this manually is slow to build, hard to maintain, and impossible to scale.

C1 changes that. We work with fast-moving startups and large enterprises to power copilots, internal tools, and assistants with intelligent generative interfaces.