Arbiter - Local AI Chat

Arbiter is a privacy-first offline AI assistant that runs entirely on your device. Arbiter lets you choose from a wide selection of lightweight, open-source models, so you can find the one that best suits your use case and personal preferences. There are no accounts, servers, or data collection. All your conversations are stored securely on your device, under your control.

Key Features:
- On-Device AI: Download and run models locally on your iPhone
- Visual AI Support: Upload images or take photos in-app to use with MLX-powered visual models
- Document & File Uploads: Summarize files and extract key insights
- Optional Web Search: Access up-to-date information when needed, while keeping your core experience private and local
- Smart Chat Suggestions: Context-aware suggestions tailored to your selected model and role
- Personalization: Customize system prompts and model settings for a more tailored experience
- Privacy by Design: Your conversations and data never leave your device
- Model Flexibility: Choose from multiple open-source AI models to balance speed, accuracy, and memory use
- Improved Reliability: Smarter context handling and enhanced error management for a more stable experience
- No Hidden Costs: Avoid expensive cloud fees with fully local processing

Whether you want to brainstorm, code, proofread text, or just experiment with the latest open-source AI, Arbiter makes advanced language models accessible while keeping your data in your hands.

Device Requirements: For smooth performance, Arbiter is recommended for iPhone 13 Pro or later (or devices with at least 6GB RAM). Older devices may experience memory issues or crashes.