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Aditya-thesys merged 4 commits into from
May 7, 2026
Merged

Add feature comparison documentation for OpenUI #468

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e6dc38a
Add feature comparison documentation for OpenUI
Aditya-thesys Apr 19, 2026
772ff57
update comparison
Aditya-thesys Apr 23, 2026
016b80d
update comparison
Aditya-thesys Apr 23, 2026
edb25a8
Update feature comparison for OpenUI
Aditya-thesys May 4, 2026
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35 changes: 35 additions & 0 deletions docs/content/docs/openui-lang/comparison.mdx
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---
title: Feature Comparison
description: OpenUI vs json-render (Vercel), A2UI (Google), and CopilotKit OpenGenerativeUI.
---

# The Generative UI Landscape

**Four frameworks. Which one ships to production?**

---

## At a Glance

| | **[OpenUI](https://github.com/thesysdev/openui)** | **[json-render](https://github.com/vercel-labs/json-render)** (Vercel) | **[A2UI](https://github.com/google/A2UI)** (Google) | **[CopilotKit OpenGenUI](https://github.com/CopilotKit/OpenGenerativeUI)** |
|---|---|---|---|---|
| **Tokens** | **1x** | 3x | 3x | 4x |
| **Latency (60 tok/s)** | **4.9s** | 14.2s | 14.2s | ~20s |
| **Streaming** | Yes | Yes | Yes | Partial |
| **Consistent output** | Yes | Yes | Yes | No |
| **Design system** | Yes | Yes | Yes | No |
| **Components** | Library + custom | Library + custom | Custom only | None |
| **Built-in data fetching** | Yes | No | No | No |
| **Chat UI included** | Yes | No | No | Yes |
| **Multi-platform** | Web, mobile, email | Web, mobile, PDF, email, video | Web, iOS, Android | Web |
| **Security risk** | Minimal | Minimal | Minimal | Medium |
| **License** | MIT | Apache 2.0 | Apache 2.0 | MIT |

---

## Best For

- **Data-driven chat UIs and dashboards** → OpenUI
- **One UI across web, mobile, PDF and email** → OpenUI
- **Multi-agent systems across iOS, Android, and web** → OpenUI
- **Creative one-off visuals (animations, generative art)** → CopilotKit OpenGenUI
1 change: 1 addition & 0 deletions docs/content/docs/openui-lang/meta.json
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"root": true,
"pages": [
"index",
"comparison",
"quickstart",
"---Core Concepts---",
"overview",
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