Thesys

Traditional UIs wait for you to decide the next step. Agentic UI acts with you. We break down the full stack, from GenUI protocols to proactive design principles to real use cases like smart dashboards, adaptive onboarding, and automated QA. 🔗 Read the full guide in link in comments.

OpenUI is out in the wild and y'all showed up 🫶 We've been reading every tweet, every dm, every late-night build post. Watching what you're making with it is genuinely the best part of shipping. Keep cooking. We're watching 👀

Agent Builder now supports Snowflake, Supabase, MongoDB, Databricks, and more. Skip the manual exports. Skip the middleware. Just connect your database right inside Agent Builder. Describe what your agent does, hook up your data source, and deploy it. Then simply ask questions and get back insights as interactive UI, generated in real-time. Try out Agent Builder in link in comments.

Dashboards as you know them are done. And we're here for it! 🚀🙌

Nobody wants to copy-paste AI text into a slide deck. So we made it unnecessary. Build AI apps that skip the text dump and respond with interactive UI, including stunning, structured slides, generated right inside the app. Generate slides with a prompt. Edit them with follow-up prompts, make inline tweaks, and export as PDF or PPTX. All without leaving the conversation! Try it in link in comments.

Six months ago, asking a CloudThinker agent "show me Q4 EC2 spend by region" meant watching a spinner for 30-40 seconds. The agent would call a dashboard() tool, fill in a strict Pydantic schema field by field, wait for the entire JSON tree to validate, and then boom — a fully-formed dashboard would snap into place. Beautiful. $0.50 per report. Slow enough that most users tabbed away to Slack and forgot what they'd asked 😅 We'd been dreaming about a "tiny language for UI" for a while — something where the agent didn't have to emit a giant JSON tree, just a few lines of compact grammar. Cool idea, no time to build it. Then in early 2026 we looked up and the whole industry had walked into the same idea: Generative UI had become a real category — Vercel AI SDK, LangChain, Thesys C1, CopilotKit AG-UI, OpenUI Lang. We adapted the OpenUI vocabulary to CloudThinker's component palette and built our Artifact system on top. Results: 30-40s down to under 10s, $0.50 down to ~$0.08, streaming component by component, one DSL body that renders on React and PDF. But the part we treasure most isn't the numbers. It's a counterintuitive insight: "Constraints — not freedom — are the whole point of Generative UI." Give an agent freedom to write HTML and it'll inject XSS, break layouts, drift from your design system. Give it a small, rigid vocabulary and everything snaps into place. Both of our architectures worked for the same reason — they only differed in format, never in contract. The blog walks through both architectures, the two detours we deliberately skipped (matplotlib and HTML freestyle), and five production lessons ✨ 👉 https://lnkd.in/gZnV_FCA Nhat Tran Khải Trịnh Xuân #GenerativeUI #AIAgents #LLM #CloudThinker #FinOps #DeveloperExperience #AIEngineering #DSL #Pydantic #BuildingInPublic

We hit the front page of Hackernews and honestly, it felt even more rewarding than the last time we were featured in Forbes. The whole team has probably looked at the screenshot more times than we’d like to admit. For the last few months, we’ve been building OpenUI.com, our open-source framework for Generative UI at Thesys. We’ve been building it in public. Shipping fast, sharing the architecture decisions, writing honestly about our findings, struggles and achievements. Most days, that work feels invisible. You ship. You iterate. And keep going. Nobody notices. And then one day, they do. What stayed with us was seeing so many developers show up across our social channels. Comments, validations, contributions from engineers who’re building at the GenUI front. This one feels special for the whole team.

Investors kept asking us about our TAM. So we added 1 billion pets to it! 🚀 Introducing OpenPUI - the open standard for pet user interfaces. Early benchmarks: → Cat onboarding: 97% completion (red dot method) → Dog security: 0.3s mailman detection → Hamster screen time: 3h 47m (0 break reminders accepted) → Turtle: still loading We're also recruiting beta testers. Applying is simple, details in the link in comments. Time to onboard our largest addressable market!