Thesys is an AI DevTool that provides a Generative UI foundation for teams building AI products that go beyond text.

Thesys is designed for teams and individuals involved in AI analytics, knowledge search, customer support, and those needing personalized dashboards and reporting agents.

What can I do with Thesys?

With Thesys, you can build and deploy AI agents using a low-code tool, generate reports and dashboards from data, and create polished artifacts like presentations and editable outputs.

How much does Thesys cost?

Thesys operates on a freemium model, offering a Free tier with 3,000 C1 API calls per month, a Build tier with 25,000 calls, and a Grow tier with 500,000 calls. The Scale tier requires contacting sales for pricing.

How is Thesys different from alternatives?

Thesys differentiates itself by providing a comprehensive Generative UI foundation specifically for AI applications, enabling users to create interactive outputs and integrate AI agents into existing systems.

Does Thesys have a free trial?

Thesys offers a Free tier that allows users to get started without any cost. Check Thesys's site for current trial availability.

Thesys

Make AI Apps respond with Dashboards Forms Charts Dashboards Slides Reports Forms

AI Engineering ToolsFreemiumWebsite

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Domain Rating

Monthly Traffic

Traffic Growth

+0.0%

Launch Date

Jan 2024

Est. Revenue

N/A

Data updated Jul 22, 2026 · Traffic data: SimilarWeb (estimated)

About Thesys

Thesys provides the Generative UI foundation for teams building AI products that go beyond text.

Quick facts about Thesys

Thesys is an AI tool tracked by Relve in the AI Engineering Tools category. It uses a Freemium pricing model and runs on the web at thesys.dev.

The Relve catalog tracks 500+ live tools in AI Engineering Tools. Thesys is part of the editorial tracking surface, with a Domain Rating of 22 on Ahrefs' authority scale.

Closest alternatives: Abyss Hub, ACE Studio, Actionbook, Action Sync, Adaapt.AI. Compare Thesys head-to-head with any of these on the /compare surface — same feature axes, pricing tiers, and traffic side-by-side.

Best for: teams looking for ai engineering tools-class capabilities with a freemium entry point. The Relve editorial team refreshes traffic, ranking, and feature data for Thesys on a rolling 24-hour cycle (last updated Jul 22, 2026), so the numbers above reflect the most recent snapshot of where the tool sits in the market. Traffic figures are SimilarWeb estimates.

Key Features

API Usage & Limits

C1 API calls

Users can make a limited number of C1 API calls per month depending on their subscription tier. The Free tier allows for 3,000 calls, while the Build tier increases this to 25,000 calls, and the Grow tier allows for 500,000 calls per month. Additional calls can be made at a specified cost per call after the limit is reached.

Free

Build

Grow

LLM tokens billing

Every response generated through the C1 API consumes LLM tokens, which are billed separately based on the provider's rates. This allows users to manage their costs effectively while utilizing the API for various applications.

Free

Build

Grow

Scale

Agent Development

Agent Builder

A low-code tool that allows users to build and deploy AI agents quickly. Users can connect various data sources, tools, and applications, enabling agents to respond with interactive outputs like charts and forms. This feature is designed for ease of use, allowing non-developers to create functional agents.

Agentic reasoning

This feature enables agents to adapt, reason, and make decisions based on user interactions. It enhances the capability of agents to provide relevant and contextual responses, improving user experience and engagement.

Deploy anywhere

Users can share their AI agents through links, embeds, or internal workflows, making it easy to integrate these agents into existing systems and processes. This flexibility allows for broader usage across different platforms.

Reporting & Artifacts

Reports API

This API allows users to generate reports, dashboards, and presentations directly from conversations and data. It streamlines the process of creating shareable artifacts, enabling users to produce polished outputs that can be customized and exported.

Generate polished artifacts

Users can turn conversations, files, and data into shareable outputs, enhancing collaboration and communication. This feature allows for the creation of high-quality reports and presentations that can be easily distributed.

Download editable outputs

This feature enables users to export high-quality PDFs and PPTs for sharing, ensuring that generated reports and presentations can be easily edited and customized further. It enhances the usability of the outputs created through the Reports API.

User Interface Generation

OpenUI Cloud

This framework allows users to turn model outputs into interactive UI components such as charts, forms, and dashboards. It enhances the user experience by providing a production-ready interface that goes beyond plain text responses.

Generates responsive UI

The system can render user interfaces that adapt across various platforms, including chat and dashboards. This ensures a consistent and engaging user experience regardless of the device or context.

Handles errors & corrections

This feature allows the system to validate UI outputs, fix errors, and implement fallbacks when models fail. It ensures that users receive accurate and reliable information, enhancing trust in the system.