Side by side
C1 Artifacts API - Thesys vs Flowstep
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
Make AI apps respond with interactive UI in real-time.
Generate real UI in seconds
Primary task
UI design
UI design
Pricing
Freemium · Free + from $49/mo
Freemium · Free + from $15/mo
Pricing details
Free + from $49/mo
Free + from $15/mo
Billing cycle
Monthly
Monthly
API access
Listed as available
Not documented
Platforms
Web
Web
Integrations
Make, MCP
Figma, MCP
Source rating
No rating recorded
5.0 / 5 · 3 ratings
Catalog views
11k
16k
Estimated monthly traffic
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Catalog imported
31 Aug 2026
31 Aug 2026
Listed strengths
- Produces high-quality slides
- Generates reports within applications
- Interactive app response
- Provides immediate response
- Generative UI capabilities
- Generates UI designs instantly
- Infinite canvas
- No complex design tool knowledge required
- Simultaneous multi-screen generation
- Real-time collaboration
Listed limitations
- Only integrates in-app
- Limited standalone functionality
- Generative UI specificity
- Limited to UI generation
- Constrained real-time responsiveness
- No offline functionality
- Limited manual edits capability
- Doesn't build the backend functionality
- Can't pre-set theme or design system
- No localization