Sigma AI Browser: Key Features at a Glance
- AI Power: SigmaGPT responds instantly in-chat, drafts emails, explains complex topics, and transforms ideas into structured content — all within the browser window.
- Privacy First: No telemetry, no ad profiling, no cloud-based AI inference by default. Optional cloud features (e.g., cross-device sync) are opt-in and fully encrypted.
- Blazing Speed: Built on a modern Chromium fork with AI-optimized rendering — pages load up to 40% faster than standard browsers, especially on low-bandwidth or older hardware.
- Transparent Pricing: Free tier includes full SigmaGPT access and core privacy tools. Pro plan ($4.99/month or $49/year) unlocks advanced AI workflows, priority support, and offline model caching.
How to Get Started in 3 Simple Steps
1. Download the latest version from sigmabrowser.com/download
2. Launch the browser and click the glowing Sigma icon in the top-right toolbar to launch SigmaGPT
3. Ask anything — summarize an article, compare products, translate text, or brainstorm ideas — instantly and securely
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Support & Contact Information
For technical help, billing inquiries, or refund requests, visit our Contact Us page or email [email protected]. Our team typically responds within 12 business hours.
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About Sigma AI Browser
Sigma AI Browser is developed by Sigma Labs Inc., an independent software company headquartered in Berlin, Germany.
Company address: Kaiserstraße 32, 10777 Berlin, Germany.
Learn more about our mission, values, and open-source contributions on the About Us page. -
Sigma AI Browser Login
Access your synced settings and AI history: Login Portal
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Sigma AI Browser Sign Up
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Real User Reviews & Ratings
“Finally, an AI browser that doesn’t trade my privacy for convenience. SigmaGPT feels like having a research assistant built into every tab.”
— Maya T., Product Designer ★★★★★ (Trustpilot)
“Faster than Chrome, smarter than Edge, and infinitely more respectful of my data. Worth every penny of the Pro subscription.”
— David L., Academic Researcher ★★★★★ (Product Hunt)