Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.
from $49.99/mo
About Thesys
What is Thesys?
Thesys is a Generative UI API that lets developers add dynamic, interactive components like dashboards, forms, charts, slides, and reports to their AI applications. Instead of responding with plain text, AI apps can generate rich visual interfaces in real time.
What problem does it solve?
Building custom UI for AI-generated content is time-consuming and complex. Thesys automates this by generating UI components from natural language prompts, saving development teams weeks of work and making AI outputs far more useful for end users.
Who is it for?
It's designed for AI-native teams and developers building products that need to present data or complex information visually. It's not suited for non-technical users or teams that only need simple text-based chatbots.
Who is it for?
Ideal for product teams creating AI-powered analytics tools, internal dashboards, customer-facing reporting, or presentation generators. It works best when your AI needs to display structured data, not just conversational replies.
Key features
- Generative UI API – Create dashboards, forms, charts, slides, and reports from natural language prompts.
- C1 API – Core API for generating UI components with select models.
- Artifacts – Generate slides and reports via the C1 Reports API (100 free pages/month).
- Model flexibility – Use leading LLMs (Anthropic, OpenAI, Google) with no markup on LLM token pricing.
- OpenRouter integration – Access more models via OpenRouter for broader choice.
- Self-hosting & VPC deployment – Enterprise plans allow control over infrastructure and data.
- Zero data retention – On paid models, ensures privacy and compliance.
SaaSpartout Score
7.4
/10
Editorial score from our review methodology — not user ratings.
◆ AI advisor — 30 seconds, no signup
Why are you looking at Developer Apis tools today?
Thesys Pricing
Thesys pricing: from $0/mo.
For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Free
$0/mo – For individuals exploring C1 with core limits. Includes 3K C1 API calls/month, style customizations, popular LLM support, and Discord community support.
Build
$49/mo – For small teams shipping first AI features. Everything in Free, plus 25K C1 API calls/month, $0.002 per call after, higher request priority/rate limits, and email support.
Grow
$499/mo – For businesses scaling production AI workloads. Everything in Build, plus 500K C1 API calls/month, $0.001 per call after, highest request priority/rate limits, priority support, solutions engineering, and SSO/SAML.
Scale
Custom pricing – For enterprises needing control over infra, data, and models. Includes self-hosting/VPC deployment, custom rate limits, compliance, SLAs, support guarantees, and bring your own LLM key.
Annual billing saves up to 20%. All paid plans include zero data retention on paid models. Free plan limited to ~100 calls/day (3K/month) and data may be used for training on free models.
Frequently asked questions
How much does Thesys cost?
Thesys has a free plan for individuals, and paid plans starting at $49/mo (Build) and $499/mo (Grow). Enterprises can contact sales for custom pricing.
Is there a free trial or free plan?
Yes, there's a free plan that includes 3K C1 API calls per month, style customizations, and community support. No credit card required.
What is Thesys used for?
Thesys is used to generate dynamic UI components—like dashboards, forms, charts, and reports—for AI applications, turning plain text responses into interactive visual interfaces.
Who is Thesys best for?
It's best for developers and product teams building AI-native applications that need to display structured data visually. It's not ideal for simple chatbot-only use cases.
What are top alternatives to Thesys?
Alternatives include traditional UI component libraries, data visualization tools like Chart.js or D3.js, and AI-powered reporting platforms like Rows or Polymer. No specific competitor named in the scraped data.
What is a key limitation of Thesys?
The free plan has limits (~100 calls/day) and data may be used for training on free models. Also, LLM tokens are billed separately from API calls, so costs can vary.
