Thesys - C1
Transform LLM responses into interactive UIs in real-time
What is Thesys - C1? Complete Overview
C1 by Thesys is an API middleware that enhances large language models (LLMs) to respond with interactive user interfaces instead of plain text. It enables developers to build AI applications that dynamically generate charts, forms, cards, lists, and tables in real-time. Designed for AI-native teams, C1 significantly reduces frontend development overhead, allowing for faster deployment of engaging AI experiences. The platform is trusted by top developers and enterprises, offering enterprise-grade security, reliability, and compliance. C1 works seamlessly with any AI stack, supporting multiple LLMs like OpenAI and Anthropic, and provides extensive customization options to match your brand's design system.
Thesys - C1 Interface & Screenshots
Thesys - C1 Official screenshot of the tool interface
What Can Thesys - C1 Do? Key Features
Generative UI
C1 transforms LLM responses into live, adaptive user interfaces, including charts, forms, cards, and tables. This eliminates the need for static UI designs and allows for dynamic, context-aware interfaces tailored to each user interaction.
Multi-LLM Support
C1 is compatible with leading LLMs such as OpenAI and Anthropic, providing flexibility to switch or combine models without locking into a single provider. This ensures optimal performance and cost-efficiency for your AI applications.
Customizable Components
Developers can bring their own React components, enabling full customization of the UI to match their company's design system. C1 supports themes, tokens, and custom logic, ensuring a seamless brand experience.
Enterprise-Grade Security
C1 offers zero data retention, GDPR, SOC2, and ISO27001 compliance, along with private deployment options. This makes it suitable for enterprises with stringent security and regulatory requirements.
Real-Time Interaction
C1 builds and renders interfaces in real-time, adapting to user inputs and behaviors. This results in highly engaging and responsive AI applications that outperform traditional text-based responses.
Best Thesys - C1 Use Cases & Applications
AI-Powered Data Analytics
C1 enables AI agents to generate interactive charts, graphs, and dashboards on the fly, making data visualization more accessible and engaging for users.
E-Commerce Assistants
E-commerce platforms can use C1 to create dynamic product recommendations, personalized shopping carts, and interactive forms, enhancing the customer experience.
EdTech Applications
Educational tools can leverage C1 to provide adaptive learning interfaces, interactive quizzes, and real-time feedback, improving student engagement and outcomes.
AI Copilots
Developers can build intelligent copilots that respond with contextual UIs, such as task lists, forms, and action buttons, streamlining workflows and boosting productivity.
How to Use Thesys - C1: Step-by-Step Guide
Sign up for a free account on Thesys.dev and obtain your API key. This key will be used to authenticate your requests to the C1 API.
Integrate the C1 React SDK into your frontend application. The SDK provides the necessary components to render the dynamic UIs generated by C1.
Configure your LLM endpoint to use C1 by updating the base URL in your API client. This ensures that all responses from your LLM are processed by C1.
Customize the UI components as needed. You can use the built-in components or bring your own React components to match your design system.
Deploy your AI application and start receiving interactive UI responses from your LLM. Monitor performance and engagement metrics to optimize the user experience.
Thesys - C1 Pros and Cons: Honest Review
Pros
Considerations
Is Thesys - C1 Worth It? FAQ & Reviews
C1 by Thesys is an LLM API that turns large language model responses into live, adaptive user interfaces in real time. Instead of plain text, C1 outputs structured UI components like forms, tables, and charts, which can be rendered directly using the C1 React SDK.
Generative UI is designed for teams building AI-native software agents, copilots, and tools where use cases evolve rapidly and static UIs are insufficient. It's ideal for developers, product teams, and builders creating dynamic, task-specific interfaces.
Tools like Lovable or Bolt generate mockups or code before deployment, while C1 builds and displays the actual interface in real-time during app runtime. C1 provides live, flexible UIs tailored to each user interaction, unlike pre-generated designs.
Yes, C1 works with all leading LLMs, including models from Anthropic and OpenAI. The platform is continuously updated to support new models, giving developers flexibility to choose the best provider for their needs.
Yes, C1 allows full customization of UI components to match your company's design system. It supports themes, tokens, and custom logic, ensuring a seamless brand experience.