Leon
The open-source personal assistant that lives on your server for total privacy and infinite customization.

The Ultimate AI-Powered Virtual Assistant for Windows and OS Automation
Braina (Brain Artificial) is a sophisticated multi-functional AI software for Windows that functions as a highly accurate speech recognition system, virtual assistant, and automation hub. Unlike general-purpose LLMs that live in a browser, Braina integrates deeply with the host operating system, allowing users to control their PC, manage files, and automate complex workflows through natural language. By 2026, Braina has evolved its architecture to support hybrid processing—utilizing local small language models (SLMs) for low-latency system tasks and cloud-based LLMs for complex knowledge retrieval. It supports over 100 languages with high-fidelity dictation accuracy, outperforming standard OS-native tools. Its technical edge lies in its 'Braina SDK' and macro-engine, which allows users to define custom triggers and responses, essentially creating a personalized digital twin for productivity. It remains a preferred choice for professionals requiring hands-free operation, such as medical transcribers, data analysts, and accessibility-focused power users who require privacy-centric, on-device automation that bypasses traditional SaaS latency.
Advanced speech-to-text engine supporting 100+ languages and dialects with adaptive learning.
The open-source personal assistant that lives on your server for total privacy and infinite customization.
The AI Chief of Staff that sees, understands, and operates your digital world.
The AI-driven Life OS for autonomous financial and chore management.
Architecting a seamless bridge between fleeting thoughts and structured digital intelligence.
Verified feedback from the global deployment network.
Post queries, share implementation strategies, and help other users.
A proprietary scripting engine that allows users to map natural language phrases to executable scripts or keyboard sequences.
Encrypted communication between mobile app and desktop client to control hardware (shutdown, volume) and software.
Integration with computational engines to solve complex equations and unit conversions via voice.
Local processing of system commands to ensure that sensitive file operations are not sent to the cloud.
Voice-activated control for various media players including Spotify, VLC, and YouTube via global hotkeys.
Hybrid search that combines local file indexing with web-based LLM queries for comprehensive data retrieval.
Doctors needing to update patient records without manual typing to reduce burnout.
Registry Updated:2/7/2026
Presenters needing to control a PC from across the room without a hardware clicker.
Data analysts performing repetitive tasks across different software like Excel and Python IDEs.