Open-LLM-VTuber is a cross-platform (Windows, macOS, Linux) project that turns local LLMs into a hands-free, voice-interactive AI companion with a Live2D avatar. The repo emphasizes fully offline operation (local models, local TTS/ASR) and rich realtime features: visual perception (camera, screen recording, screenshots), voice interruption without headphones (AI won't hear its own voice), Live2D expressions and emotion mapping, touch feedback, proactive speech, and a transparent "desktop pet" mode that supports click-through and global top-most windows.
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📢 v2.0 Development: We are focusing on Open-LLM-VTuber v2.0 — a complete rewrite of the codebase. v2.0 is currently in its early discussion and planning phase. We kindly ask you to refrain from opening new issues or pull requests for feature requests on v1. To participate in the v2 discussions or contribute, join our developer community on Zulip. Weekly meeting schedules will be announced on Zulip. We will continue fixing bugs for v1 and work through existing pull requests.
The backend integrates many inference and audio stacks out of the box (examples from the README: LLMs like Ollama, OpenAI, Gemini, Claude, Mistral, GGUF, vLLM; ASR like sherpa-onnx, Faster-Whisper, Whisper.cpp; TTS like Coqui-TTS, Bark, Edge TTS, GPTSoVITS). It supports NVIDIA and non-NVIDIA GPUs, CPU runs, and cloud APIs, and provides simple module configuration plus guides for character customization and Live2D import.
Who it's for
Hobbyists and creators who want a locally hosted VTuber/companion with Live2D and voice interaction.
Developers wanting an extensible modular stack to plug in custom LLM/ASR/TTS modules or implement Agent interfaces.
Privacy-conscious users who need fully offline TTS/ASR and local model inference.
Why It Matters / Why Trending Now
This repo is trending (ranked #8 daily with +581 stars today) because it combines several popular trends: local LLM deployment, offline TTS/ASR, and Live2D avatar integration — all in a single, cross-platform project. The README highlights active development (v2.0 rewrite in planning) and a large community (Zulip developer discussions, weekly meetings), which attracts contributors and users. Recent breaking changes noted for v1.0.0 (re-deployment required, update via uv run update.py) and continuing bugfixes keep activity high and explain the spike in stars and forks.
Notable concrete details
Runs fully offline and supports GPU acceleration on macOS for some components.
Desktop client supports transparent background "pet mode" with mouse click-through and global top-most behavior.
Voice features include interruption handling so the AI doesn't hear its own output, and TTS translation (e.g., chat in Chinese while AI speaks Japanese).
Quick start and deployment docs are hosted at the project's documentation site; the README also lists a development guide and roadmap.
Caveats
Project is under active development; v2.0 is a full rewrite in planning and contributors are asked to join Zulip for v2 discussions.
Live2D sample models are licensed separately by Live2D Inc.; commercial use may require additional permissions.
:warning: This project is in its early stages and is currently under active development.
:warning: If you want to run the server remotely and access it on a different machine, such as running the server on your computer and access it on your phone, you will need to configure https, because the microphone on the front end will only launch in a secure context (a.k.a. https or localhost). See MDN Web Doc. Therefore, you should configure https with a reverse proxy to access the page on a remote machine (non-localhost).
⭐️ What is this project?
Open-LLM-VTuber is a unique voice-interactive AI companion that not only supports real-time voice conversations and visual perception but also features a lively Live2D avatar. All functionalities can run completely offline on your computer!
You can treat it as your personal AI companion — whether you want a virtual girlfriend, boyfriend, cute pet, or any other character, it can meet your expectations. The project fully supports Windows, macOS, and Linux, and offers two usage modes: web version and desktop client (with special support for transparent background desktop pet mode, allowing the AI companion to accompany you anywhere on your screen).
Although the long-term memory feature is temporarily removed (coming back soon), thanks to the persistent storage of chat logs, you can always continue your previous unfinished conversations without losing any precious interactive moments.
In terms of backend support, we have integrated a rich variety of LLM inference, text-to-speech, and speech recognition solutions. If you want to customize your AI companion, you can refer to the Character Customization Guide to customize your AI companion's appearance and persona.
The reason it's called Open-LLM-Vtuber instead of Open-LLM-Companion or Open-LLM-Waifu is because the project's initial development goal was to use open-source solutions that can run offline on platforms other than Windows to recreate the closed-source AI Vtuber neuro-sama.
👀 Demo
✨ Features & Highlights
🖥️ Cross-platform support: Perfect compatibility with macOS, Linux, and Windows. We support NVIDIA and non-NVIDIA GPUs, with options to run on CPU or use cloud APIs for resource-intensive tasks. Some components support GPU acceleration on macOS.
🔒 Offline mode support: Run completely offline using local models - no internet required. Your conversations stay on your device, ensuring privacy and security.
💻 Attractive and powerful web and desktop clients: Offers both web version and desktop client usage modes, supporting rich interactive features and personalization settings. The desktop client can switch freely between window mode and desktop pet mode, allowing the AI companion to be by your side at all times.
🎯 Advanced interaction features:
👁️ Visual perception, supporting camera, screen recording and screenshots, allowing your AI companion to see you and your screen
🎤 Voice interruption without headphones (AI won't hear its own voice)
🫱 Touch feedback, interact with your AI companion through clicks or drags
😊 Live2D expressions, set emotion mapping to control model expressions from the backend
🐱 Pet mode, supporting transparent background, global top-most, and mouse click-through - drag your AI companion anywhere on the screen
💭 Display AI's inner thoughts, allowing you to see AI's expressions, thoughts and actions without them being spoken
🗣️ AI proactive speaking feature
💾 Chat log persistence, switch to previous conversations anytime
🌍 TTS translation support (e.g., chat in Chinese while AI uses Japanese voice)
🧠 Extensive model support:
🤖 Large Language Models (LLM): Ollama, OpenAI (and any OpenAI-compatible API), Gemini, Claude, Mistral, DeepSeek, Zhipu AI, GGUF, LM Studio, vLLM, etc.
🔊 Text-to-Speech (TTS): sherpa-onnx, pyttsx3, MeloTTS, Coqui-TTS, GPTSoVITS, Bark, CosyVoice, Edge TTS, Fish Audio, Azure TTS, etc.
🔧 Highly customizable:
⚙️ Simple module configuration: Switch various functional modules through simple configuration file modifications, without delving into the code
🎨 Character customization: Import custom Live2D models to give your AI companion a unique appearance. Shape your AI companion's persona by modifying the Prompt. Perform voice cloning to give your AI companion the voice you desire
🧩 Flexible Agent implementation: Inherit and implement the Agent interface to integrate any Agent architecture, such as HumeAI EVI, OpenAI Her, Mem0, etc.
🔌 Good extensibility: Modular design allows you to easily add your own LLM, ASR, TTS, and other module implementations, extending new features at any time
👥 User Reviews
Thanks to the developer for open-sourcing and sharing the girlfriend for everyone to use
This girlfriend has been used over 100,000 times
🚀 Quick Start
Please refer to the Quick Start section in our documentation for installation.
☝ Update
:warning: v1.0.0 has breaking changes and requires re-deployment. You may still update via the method below, but the conf.yaml file is incompatible and most of the dependencies needs to be reinstalled with uv. For those who came from versions before v1.0.0, I recommend deploy this project again with the latest deployment guide.
Please use uv run update.py to update if you installed any versions later than v1.0.0.
😢 Uninstall
Most files, including Python dependencies and models, are stored in the project folder.
However, models downloaded via ModelScope or Hugging Face may also be in MODELSCOPE_CACHE or HF_HOME. While we aim to keep them in the project's models directory, it's good to double-check.
Review the installation guide for any extra tools you no longer need, such as uv, ffmpeg, or deeplx.
Your Live2D desktop assistant powered by LLM! Available for both Windows and MacOS, it senses your screen, retrieves clipboard content, and responds to voice commands with a unique voice. Featuring voice wake-up, singing capabilities, and full computer control for seamless interaction with your favorite character.
📜 Third-Party Licenses
Live2D Sample Models Notice
This project includes Live2D sample models provided by Live2D Inc. These assets are licensed separately under the Live2D Free Material License Agreement and the Terms of Use for Live2D Cubism Sample Data. They are not covered by the MIT license of this project.
This content uses sample data owned and copyrighted by Live2D Inc. The sample data are utilized in accordance with the terms and conditions set by Live2D Inc. (See Live2D Free Material License Agreement and Terms of Use).
Note: For commercial use, especially by medium or large-scale enterprises, the use of these Live2D sample models may be subject to additional licensing requirements. If you plan to use this project commercially, please ensure that you have the appropriate permissions from Live2D Inc., or use versions of the project without these models.
Contributors
Thanks our contributors and maintainers for making this project possible.
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