OpenUI is an open-source standard for generative user interfaces that allows AI models to produce interactive application experiences instead of responding exclusively with text. Built around OpenUI Lang, a compact language for describing interfaces, the project enables developers to connect AI-generated output with their own frontend components.

The idea addresses a limitation in many AI applications. A chatbot can explain a financial report, for example, but a well-designed interface could present the same information through charts, data tables and interactive filters. Similarly, an AI assistant could generate a configurable form, a product comparison or a multi-tab dashboard based on what a user asks.

OpenUI gives developers a way to build these experiences while retaining control over the components that can be generated and how they behave. The project supports streaming output, allowing interface elements to appear as the model generates them, rather than requiring users to wait for an entire response.

For developers exploring AI agents, copilots and conversational applications, this approach offers a practical way to move beyond text-only interactions. The project’s official website and GitHub repository provide the documentation, packages and examples needed to evaluate it.

What Is OpenUI?

AI assistant assembling reusable interface components into an interactive dashboard.

OpenUI is a framework for building generative user interfaces, often shortened to generative UI. In this approach, an AI model helps determine which interface components to display and how to combine them for a particular request.

Instead of returning only Markdown or a large JSON structure, the model can generate a description written in OpenUI Lang. A compatible renderer interprets that description and maps it to components provided by the application.

The key distinction is that developers define the available building blocks. These can include charts, cards, forms, tables, layouts and specialised components designed for a particular business. The model can compose those elements, but the application remains responsible for their implementation and behaviour.

OpenUI is therefore not simply a visual chatbot theme or a tool that generates screenshots. It provides infrastructure for rendering structured, interactive UI elements within AI-powered applications.

How OpenUI Works

Workflow showing an AI model generating structured interface output for a frontend renderer.