Source: https://seerepo.com/compare/bytedance/UI-TARS-desktop/vs/danielmiessler/Fabric
Markdown source: https://seerepo.com/compare/bytedance/UI-TARS-desktop/vs/danielmiessler/Fabric.md
Description: UI-TARS-desktop and Fabric share 3 technologies: OpenAI, Anthropic, and GitHub. UI-TARS-desktop is written in TypeScript and Fabric in Go.

# UI-TARS-desktop vs Fabric

UI-TARS-desktop and Fabric share 3 technologies: OpenAI, Anthropic, and GitHub. UI-TARS-desktop is written in TypeScript and Fabric in Go.

- [bytedance/UI-TARS-desktop](https://seerepo.com/r/bytedance/UI-TARS-desktop): The Open-Source Multimodal AI Agent Stack: Connecting Cutting-Edge AI Models and Agent Infra
- [danielmiessler/Fabric](https://seerepo.com/r/danielmiessler/Fabric): Fabric is an open-source framework for augmenting humans using AI. It provides a modular system for solving specific problems using a crowdsourced set of AI prompts that can be used anywhere.

## What they share and what sets them apart

- In common: OpenAI, Anthropic, GitHub
- Only in UI-TARS-desktop: Express, MongoDB, MCP
- Only in Fabric: SvelteKit, Gin

## Side by side

| | UI-TARS-desktop | Fabric |
|---|---|---|
| Size | 194,656 lines written, 1,140 code files | 57,878 lines written, 272 code files |
| Who writes it | 0.1% of its commits signed by AI. With Claude Code | 3.2% of its commits signed by AI. With Claude Code, GitHub Copilot, and Codex |
| Activity | Last push October 9, 2026, 1,113 commits, 39,487 stars | Last push October 29, 2026, 3,543 commits, 44,504 stars |
| Tests | 161 test files. 10.9% of its code files have a test that imports them | 125 test files. 41.9% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, UI-TARS-desktop or Fabric?

UI-TARS-desktop, with 194,656 lines written in 1,140 code files; Fabric has 57,878 in 272.

The proof: [bytedance/UI-TARS-desktop's code at commit 3ac2cb8](https://github.com/bytedance/UI-TARS-desktop/tree/3ac2cb8d946d78d5ff92ad17b318eaafa18c178c)

### Which has more GitHub stars, UI-TARS-desktop or Fabric?

Fabric, with 44,504 stars; UI-TARS-desktop has 39,487.

The proof: [danielmiessler/Fabric on GitHub](https://github.com/danielmiessler/Fabric)

### Which has more tests, UI-TARS-desktop or Fabric?

UI-TARS-desktop, with 161 test files; Fabric has 125.

The proof: [bytedance/UI-TARS-desktop's code at commit 3ac2cb8](https://github.com/bytedance/UI-TARS-desktop/tree/3ac2cb8d946d78d5ff92ad17b318eaafa18c178c)

### Which was updated more recently, UI-TARS-desktop or Fabric?

Fabric: its last push was on October 29, 2026, and UI-TARS-desktop's on October 9, 2026.

The proof: [danielmiessler/Fabric's commits on GitHub](https://github.com/danielmiessler/Fabric/commits)

### Which has more commits signed by AI, UI-TARS-desktop or Fabric?

Fabric: an AI signed 3.2% of its commits, with Claude Code, GitHub Copilot, and Codex; in UI-TARS-desktop, 0.1%.

The proof: [the commits each tool signed in danielmiessler/Fabric](https://seerepo.com/r/danielmiessler/Fabric/ai)

## Sources

- bytedance/UI-TARS-desktop: Read on October 31, 2026, at commit 3ac2cb8 (https://github.com/bytedance/UI-TARS-desktop/tree/3ac2cb8d946d78d5ff92ad17b318eaafa18c178c)
- danielmiessler/Fabric: Read on October 31, 2026, at commit 8ce0909 (https://github.com/danielmiessler/Fabric/tree/8ce0909d8622a61b6aaf539d467ba31bb7e0b6dd)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.