Thesys

Thesys is a frontend infrastructure platform designed specifically for AI products, enabling teams to build dynamic, real-time interfaces powered by large language models and other AI backends. It abstracts away much of the complexity of managing stateful, conversational, and generative UI flows, allowing developers to focus on product logic rather than low-level orchestration. By leveraging the C1 Generative UI API, Thesys turns AI outputs into structured, interactive components that can be rendered consistently across web applications.

At its core, Thesys provides a declarative model for defining UI behavior driven by AI responses, including component layouts, user interaction patterns, and live updates. It supports real-time streaming of model outputs, so interfaces can progressively render content as it is generated. The platform handles synchronization between client and server state, making it easier to build multi-step workflows, contextual side panels, and adaptive forms that react to user input and AI suggestions. Thesys also emphasizes composability, allowing teams to reuse and version complex AI-driven UI flows across multiple products.