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Chaty on-device AI app

Chaty is a private offline desktop app built on Rust and llama.cpp that runs Muse Glimmer and other open models locally with a coding agent, RAG knowledge base, deep research and voice.

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<div align="center">

**English** · [简体中文](README.zh-CN.md) · [Português (BR)](README.pt-BR.md)

<img src="icon.png" width="88" height="88" alt="Chaty" />

# Chaty

### Private, on-device AI — your models, your data, your machine.

Chaty runs open LLMs **100% offline** in a polished desktop app.
No account, no cloud, no telemetry — with a local coding agent, a document
knowledge base, Deep Research, and hands-free voice built right in.

[![Latest release](https://img.shields.io/github/v/release/Fangyuan025/Chaty?label=release&color=19c37d)](../../releases/latest)
[![Downloads](https://img.shields.io/github/downloads/Fangyuan025/Chaty/total?color=8a63d2&cacheSeconds=3600)](../../releases)
[![CI](https://img.shields.io/github/actions/workflow/status/Fangyuan025/Chaty/ci.yml?branch=main&label=CI)](../../actions)
[![Windows · Vulkan](https://img.shields.io/badge/Windows-Vulkan-0078D6?logo=windows&logoColor=white)](../../releases)
[![macOS · Metal + MLX](https://img.shields.io/badge/macOS-Metal_%2B_MLX-000000?logo=apple&logoColor=white)](../../releases)
[![Muse-Glimmer · vision + 4 rungs](https://img.shields.io/badge/Muse--Glimmer-vision_%2B_4_rungs-6b4fbb)](#reasoning-effort-as-a-first-class-control)
[![Qwen3.8 · reasoning effort](https://img.shields.io/badge/Qwen3.8-reasoning_effort-6b4fbb)](#reasoning-effort-as-a-first-class-control)
[![100% offline](https://img.shields.io/badge/100%25-offline-19c37d)](https://chaty.ca)
[![Rust + Tauri 2](https://img.shields.io/badge/Rust_+_Tauri_2-CE412B?logo=rust&logoColor=white)](#architecture)
[![License: MIT](https://img.shields.io/badge/License-MIT-444)](LICENSE)

[**↓ Download**](../../releases) · [**Website**](https://chaty.ca) · [**Docs**](https://chaty.ca/docs.html) · [**Chaty model on Hugging Face**](https://huggingface.co/stevenpr/chaty-qwen3.5-4b-design-GGUF)

<br />

<img src="docs/screenshots/demo.gif" width="860" alt="Chaty's local coding agent reading an out-of-workspace file behind a one-click permission grant" />

<sub>A local coding agent — searches GitHub, reads the source, edits your files, and runs the tests. **All on your machine.**</sub>

</div>

---

## Why Chaty

- 🔒 **Truly private** — every model, document, and conversation stays on your device. No sign-up, no server, nothing phoned home.
- ⚡ **Native and fast** — a Rust + llama.cpp core with **Vulkan / Metal** GPU offload that auto-tunes to your

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