OpenUI
Work on OpenUI? Verify this listing (free)Open-source generative UI for AI agents
Thesys's open-source generative UI framework (1.0 launched Oct 15, 2026). Agents answer with real interfaces such as charts, maps, forms and tables built from your own component library, streamed via the compact OpenUI Lang. Runtimes for React, Vue, Svelte and Angular; works with any model.
Best for: Builders who want their agent or chatbot to reply with interactive UI instead of walls of text
Visit OpenUI ↗- Pricing
- Free open-source framework (MIT). Optional OpenUI Cloud/Gateway from Thesys; you pay your model provider.
- Free tier
- Yes: the full framework is free; OpenUI Gateway offers free models to build with
- Open source
- Yes
- Last verified
- 2026-10-24
OpenUI pricing breakdown, history and cheaper alternatives →
Score breakdown
- Fit for the use case20 / 25
- Vibe-coder friendliness11 / 15
- Output quality & reliability12 / 15
- Pricing & free tier14 / 15
- Ecosystem & integrations8 / 10
- Momentum10 / 10
- Code ownership & lock-in9 / 10
Why this score: Free, MIT-licensed and model-agnostic, with ~11k GitHub stars and a big 1.0 launch. Vendor benchmark claims 58% fewer output tokens than json-render, not yet independently verified. Code-first, so aimed at developers rather than non-coders.
Based on desk research of official pricing pages and docs; see methodology.
FAQ
- Is OpenUI free?
- OpenUI free tier: Yes: the full framework is free; OpenUI Gateway offers free models to build with. Paid pricing: Free open-source framework (MIT). Optional OpenUI Cloud/Gateway from Thesys; you pay your model provider..
- What is OpenUI pricing in 2026?
- OpenUI pricing (as of our last verification on 2026-10-24): Free open-source framework (MIT). Optional OpenUI Cloud/Gateway from Thesys; you pay your model provider.. Always confirm on the official site — plans change.
- Is OpenUI open source?
- Yes. OpenUI is open source.
- What is OpenUI's PromptToProd score?
- OpenUI scores 84/100 on PromptToProd (fit, vibe-coder friendliness, quality, pricing, ecosystem, momentum, ownership). See the score breakdown on this page and our methodology.
- What is OpenUI best for?
- OpenUI is best for: Builders who want their agent or chatbot to reply with interactive UI instead of walls of text.
- When was OpenUI last verified on PromptToProd?
- Pricing and details for OpenUI were last verified on 2026-10-24 from official docs and pricing pages.
Alternatives
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