C1 by Thesys is a Generative UI API that augments LLMs to respond with interactive UI like charts, forms, cards, and more in real-time, instead of plain text. It integrates seamlessly with any LLM, framework, or MCP in just 2 lines of code. Ship rich, interactive AI apps 10x faster with 80% less UI overhead.
Thesys
Launch date
C1 Artifacts API Build AI apps that can generate stunning slides and reports
Launched on November 11th, 2025
