KiffOS
KiffOS is a native macOS desktop application that provides a sovereign, locally-run AI assistant and agent. It leverages GPU-accelerated inference on Apple Silicon to run large language models entirely on the user's machine, without requiring cloud connectivity, accounts, or subscriptions. The system is built around three core principles: local-first execution, security through permission verification, and user governance of all sensitive actions. The application includes a voice interface, document writing and editing tools, email management (IMAP/SMTP), file browsing, and app launching, all controlled via natural language. A unique feature is its permission verifier that intercepts every system call the agent attempts, enforcing a deny-by-default policy and requiring user approval for any sensitive operation, such as accessing files or the network. A basic active defense (EHA) maps network traffic and flags anomalies. KiffOS is available in a free edition with core local features and a Pro edition that adds connected-world capabilities: mail, web, social media integration, smart home control, and advanced defense with alerts, auto-response, and peer-to-peer mesh. The Pro license is a one-time purchase. The smart home beta supports local voice commands and HTTP/MQTT gateways, with plans for Matter and Zigbee. The software targets users who prioritize data sovereignty and offline operation. It runs on macOS 11+ with Apple Silicon (M1–M4) and as little as 8 GB of RAM, with models ranging from 3B to 14B parameters depending on available memory. The long-term vision includes a bare-metal Rust micro-kernel for an even more isolated execution environment.
- Category
- AI Agents
- Pricing
- Free
Problem solved
KiffOS addresses the loss of privacy and control inherent in cloud-dependent AI assistants. By running a powerful language model entirely locally and enforcing a permission-based governance layer, it ensures that personal data, documents, and commands never leave the device, and that the agent cannot perform unauthorized actions. It enables sovereign, offline-capable AI assistance for everyday tasks.
Use cases
- Voice-controlled system commands and app launching
- Locally assisted document writing and formatting
- Offline email reading, triage, and reply drafting
- Secure file browsing and management via natural language
- Smart home device control without cloud dependency
- Network anomaly detection and active defense
Audience
- Developers
- Hobbyists
- Content Creators
- Business Users
- Researchers
Pros
- Runs 100% locally on Apple Silicon, ensuring data privacy
- Permission verifier prevents unauthorized agent actions
- GPU-accelerated inference with no cloud dependency
- One-time Pro purchase, no subscription required
- Integrates voice, documents, mail, files in one interface
Cons
- macOS only, limited to Apple Silicon hardware
- Free edition excludes connected-world features
- Smart home control is in beta with limited hardware support
- Model size constrained by available RAM (up to 14B)
- Not open source, no public repository for transparency
Official website: https://kiffos.fr/en
Canonical LambdaBase page: https://www.lambdabase.com/tools/kiffos