> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ajayji.com/llms.txt
> Use this file to discover all available pages before exploring further.

# On-Device LLM Integration

> Your Private AI

**aj** is built on a foundation of privacy and user control, and nowhere is this more evident than in its ability to run powerful Large Language Models (LLMs) directly on your device.

**How It Works:**

The app includes a sophisticated model management system that allows you to discover, download, and run state-of-the-art open-source models in the popular GGUF format.

1. **Discover Models:** The app features a rich, built-in browser for the Hugging Face Hub.
2. **Download and Manage:** Once you find a model you like, you can download it directly to your device.
3. **Run with Privacy:** When you use an on-device model, all inference is performed locally.
4. **Customize Your AI's Behavior:** For each on-device model, you can edit the "system prompt."

**Key Benefits:**

* **Ultimate Privacy:** On-device execution means your data stays with you.
* **Offline Capability:** Your on-device models work even without an internet connection.
* **No API Keys, No Rate Limits:** Run your models as much as you want without worrying about API costs.
* **A World of Models at Your Fingertips:** The integrated Hugging Face browser gives you access to a vast ecosystem of open-source AI models.