Sigma
A private AI browser with a built-in agent, local AI model, and ad blocker.
- SI Score
- 75/100
- Pricing
- Not confirmed
- Free plan
- Not confirmed
- Sign-up required
- Not confirmed
Ask SI about Sigma
Answers use saved listing facts and recorded sources.Homepage screenshot
What it does
Sigma is a Chromium-based browser for macOS, Windows, and iOS that adds an AI agent, AI chat, deep research, image generation, and a local model called Eclipse. Downloads are listed for Windows x64, Apple Silicon Macs, and iOS 16.0 or later. Android and Linux builds are marked as coming soon, with an Android waitlist on the site. Support is available by email.
The browser runs on Chromium and adds privacy defaults such as TLS 1.3, HTTPS, and DNS over HTTPS. Sigma AI Agent works inside the browser using agent options named OpenClaw and Hermes. In standard mode it needs an API key; in Private Mode it can use local models. Eclipse is a local model built into the browser so prompts stay on the device. Other listed features include AI chat, deep research, an image generator, chat with page, quick translate, an ad blocker, private profiles secured by a 12 word phrase, extension support, and Web3 connections. Downloads cover Windows x64, Mac Apple Silicon, and iOS 16.0 and later. Android and Linux are not yet available. Support is offered at [email protected].