Number 1: 
WhittleOS
A startup decision engine for solo founders that kills weak ideas before they waste your months
- AI app builders
- DR 3 no change since last check
AI app builders · United States
Thesys
The open standard for Generative UI
- Community votes
- 0
- DR by Ahrefs
- 63 no change since last check
- Started
- 2024
Ahrefs Domain Rating benchmarked 16 Oct 2026, rebuilt 16 Oct 2026.
Thesys metrics
| Metric | Value |
|---|---|
| Domain Rating | 63 no change since last check |
| Trust Flow | 27 no change since last check |
| Citation Flow | 40 no change since last check |
| Referring domains | 876 no change since last check |
| External backlinks | 3,160 no change since last check |
Ahrefs Domain Rating benchmarked 16 Oct 2026, rebuilt 16 Oct 2026. Main build topic: Computers/Programming/Languages (27). Majestic benchmarked 16 Oct 2026, rebuilt 16 Oct 2026. Link data built by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Thesys builds OpenUI, enabling AI apps to respond with interactive charts, cards, dashboards, and reports instead of text.
What it is
Thesys develops OpenUI, an open standard for Generative UI that transforms how AI applications interact with users. Rather than responding with text alone, the platform enables AI apps to generate interactive dashboards, forms, charts, slides, and reports in real-time.
The company provides the C1 Generative UI API and OpenUI Cloud, a software-as-a-service suite that powers dynamic, context-aware interfaces. The platform adapts to user context, understands intent, and responds dynamically to create personalized experiences.
Thesys targets teams building AI products who want interfaces that go beyond traditional rigid designs. The company was founded in 2024 and is based in San Francisco.
What it is built with
- Interactive charts and visualizations
- Dynamic dashboard generation
- Real-time UI adaptation
- Reports and slides generation
- Multiple LLM support
- OpenUI Cloud with API key management
- Style customizations
Pricing
Free ($0/mo) with 3K API calls/month; Build ($49/mo) with 25K API calls/month; Grow ($499/mo) with 500K API calls/month; Scale (Custom). API calls included; LLM tokens billed separately at provider rates. Reports API: 100 pages free per month, then $0.01 per page.
Compare and explore
Questions from the bench
- How is the Reports API billed?
- The Reports API is billed separately from the main service. You receive 100 pages free per month, and then pay $0.01 per page operation after that. The Reports API does not consume any LLM tokens.
- Do I need to pay for LLM tokens separately?
- Yes, LLM tokens are billed separately from API calls according to the provider's rates. Thesys applies no markup - you pay provider rates directly. This applies to models from OpenAI, Anthropic, and Google.
Find Thesys online
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- Demo video (locked)
- Dofollow website link (locked)
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