Sigma Private AI Browser

What It Does

Sigma Private AI Browser is an AI-first agentic browser that combines autonomous task execution, deep research capabilities, and privacy-focused AI tools into a single Chromium-based platform. Unlike traditional browsers, Sigma integrates an AI agent that can navigate pages, fill forms, manage tasks, and complete multi-step workflows on your behalf — all while keeping sensitive data local and encrypted.

Who It's For

Sigma is designed for privacy-conscious professionals, researchers, and power users who want AI assistance without sacrificing control over their data. It's ideal for anyone handling sensitive information, conducting deep research, or automating repetitive online tasks while maintaining full data sovereignty.

Key Features & Capabilities

• AI Agent: Autonomous browser agent that performs actions on your behalf — booking tickets, filling forms, managing inbox tasks, posting to social media, and more — without manual clicking • Eclipse Local LLM: On-device AI model that runs entirely offline with no cloud processing, keeping all prompts and data on your machine • Deep Research Mode: Advanced research tool for queuing sources, clustering information, and generating structured insights for market analysis or academic review • AI Chat: Integrated chat interface for questions, image generation, text creation, and multi-source research • Chat With Page: Turn any website into a conversation — ask questions, get summaries, and explore content without leaving the page • Privacy-First Architecture: End-to-end encryption, TLS 1.3, DNS-over-HTTPS, built-in ad blocker, and GDPR/CCPA compliance • Mnemonic Profiles: Blockchain-based identity system with 12-word recovery phrase for secure, portable browser profiles • Web3 Integration: Native support for decentralized apps, wallet management, and blockchain networks

Performance & Security

Benchmarked at 1.32x faster than ChatGPT Atlas and using less RAM than Chrome, Safari, and other major browsers, Sigma delivers speed without compromise. All AI conversations are end-to-end encrypted, phishing sites are detected in real-time, and the open-source codebase ensures transparency. Critical data stays local, minimizing server exposure and unnecessary data transmission.

What Differentiates It

Sigma is the only browser that combines a true autonomous AI agent with a local LLM and enterprise-grade privacy protections. While other browsers offer AI chat or extensions, Sigma's agent actually performs tasks end-to-end, and Eclipse ensures your data never leaves your device. The result is a browsing experience where AI works for you, not against your privacy.