Last updated 07-01-2026
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Sigma AI Browser (formerly Bagoodex)
Sigma AI Browser is a Chromium-based browser with built-in chat, research, and agent tools that run alongside normal browsing. Bagoodex merged into Sigma in 2025; the old Bagoodex site now points users to Sigma for chat and search features.
The browser ships Eclipse, a local large language model that runs on your device without sending prompts to the cloud. Alongside that, Sigma AI Chat covers image generation, deep research, web search, document analysis, and page-level Q&A from one panel.
Sigma AI Agent can navigate sites, fill forms, and complete multi-step tasks using agents like OpenClaw and Hermes, with optional API keys or local models in Private Mode. The product targets people who want privacy defaults, ad blocking, and automation inside the browser instead of juggling separate extensions and chat tabs.
Eclipse runs a local LLM on your machine with no cloud prompts required
AI Agent clicks, types, and completes multi-step site tasks from one workspace
Deep Research mode queues sources and returns structured summaries in chat
Chat with Page turns any open tab into a Q&A surface without copy-paste
Built-in ad blocker, phishing warnings, and GDPR/CCPA compliance badges on site
Desktop apps for macOS and Windows plus iOS and Android mobile builds
Combines browsing, chat, research, and agents in one Chromium-based app.
Eclipse local LLM option keeps prompts on device with offline support.
Free tier includes chat, page Q&A, and limited agent and research usage.
Linux desktop build is listed as coming soon on the download page.
Full AI Agent and unlimited research tiers require paid Plus or Pro plans.
Some advanced agent workflows need your own API key outside Private Mode.
What happened to Bagoodex?
Bagoodex and Sigma merged in July 2025 under the Sigma AI Browser brand. The Bagoodex.io homepage now directs visitors to Sigma AI Chat at app.sigmabrowser.com for the updated product.
Does Sigma AI Browser have a free plan?
Yes. Sigma AI Browser offers a Free plan at $0 per month with chat on all platforms, text and image analysis, limited AI Agent access, Chat With Page, and capped image generation, TG Search, Text Writer, and Deep Research usage.
How much does Sigma AI Browser Plus cost?
Sigma AI Browser Plus is $10 per month, or $8 per month when billed annually (20% off). Plus adds unlimited prompts and Text Writer, higher limits on uploads, web search, image generation, deep research, TG Search, and five extra AI Agent uses.
What is Sigma Eclipse?
Sigma Eclipse is Sigma's local LLM built into the browser. It processes prompts on your device, works offline, and is available as a separate download for Windows and macOS from the Sigma site.
Which platforms does Sigma AI Browser support?
Sigma AI Browser offers downloads for macOS and Windows, with iOS and Android apps available. The site lists a Linux version as coming soon.
Is Sigma AI Browser private?
Sigma markets privacy-first browsing with a built-in ad blocker, TLS 1.3, DNS-over-HTTPS, and local Eclipse processing so sensitive data can stay on device. Cloud chat features may still use remote models depending on mode and plan.