Searching for "Sigma AI" can lead to a privacy-first browser, a data-labeling company, or an analytics platform. Here is a clear map — and where an AI-native browser like Tabbit fits.
30-SECOND VERDICT
Sigma AI Browser is a free, private Chromium browser with an AI agent and local AI. sigma-ai.com is a B2B data and evaluation company. Sigma Computing is a BI platform. If you want a browser that truly executes tasks, Tabbit is the AI-native alternative.
"Sigma AI" is not one product. Matching your search to the right entity saves time.
A free, private Chromium browser with a built-in AI agent, AI chat, local offline AI (Eclipse), and an ad blocker. Made by Sigmabrowser OÜ (Estonia).
Matches: "sigma ai browser", "sigma ai chat", "is sigma ai free/safe"
A data and evaluation company that provides data labeling, model evaluation, human-in-the-loop operations, and compliance advisory for enterprise AI teams.
Matches: "sigma ai job", "sigma ai salary", "sigma ai careers"
Sigma Computing is a business-intelligence platform with an AI toolkit; the Sigma AI app on Google Play is a generative video/music/chat app.
Matches: "sigma ai login", "sigma ai app"
If you searched for a browser, you likely mean Sigma AI Browser. Here is what it does — and the honest answers to the questions people ask most.
Is Sigma AI Browser free?
Yes. Sigma Browser is free to download on macOS, with Windows, iOS, and Android listed as coming next. It makes money through premium tools and paid features rather than ads.
Is Sigma AI Browser safe?
It is privacy-oriented: local AI keeps prompts on your device, connections use TLS 1.3 with DNS-over-HTTPS, and it adds phishing detection. As always, download from the official site and be careful with third-party extensions.
What can the AI agent do?
The agent acts inside the browser — filling forms, navigating pages, and managing repeatable online tasks. Its depth is more "assistant automation" than multi-system agentic workflows.
An offline LLM built into the browser for faster, private answers without cloud processing.
Ask questions, summarize pages, generate images, and run multi-source deep research in one place.
Built-in ad blocker, mnemonic profile identity, private profiles, and end-to-end encryption.
Connect wallets, interact with dApps, and keep using standard Chromium extensions.
If you searched for a job or an evaluation service, you are looking at a different Sigma AI.
sigma-ai.com is a data-centric AI company. It provides data sourcing, labeling, model evaluation, human-in-the-loop review, and compliance advisory for teams that build or deploy AI systems.
This is a B2B vendor, not a browser. "How much does Sigma.AI pay per hour?" refers to its crowd-sourced annotation roles; exact pay varies by region and skill.
Most "AI browsers" still live in the chatbot lane: they answer questions but do not do the work. The real alternative question is how much you want the browser to execute.
Private, chat-style AI
Great privacy and local AI. The agent handles simple, repeatable actions inside one tab.
Web chatbots
Powerful for answers and content, but they do not live inside your browser tabs or touch your local files.
AI-native browser
Runs multi-step agent tasks in parallel tab groups, references what you see via @, and reuses Skills — free top models included.
Verdict: if you want privacy-first lightweight browsing, Sigma is solid. If you want a browser that actually executes research, forms, and automations, Tabbit is the stronger fit.
Tabbit is a free AI-native browser for macOS and Windows. It does not bolt AI onto a classic browser — it rebuilds the browser around an agent that works alongside you.
Give a goal in natural language and Tabbit completes multi-step web tasks in a separate tab group while you keep working.
Type @ in the omnibox to reference the current page, a tab group, a screenshot, bookmarks, or a local PDF/Excel as AI context.
Save prompts and scripts as Skills, or grab ones from the Skill Square, to automate repetitive workflows without code.
Use frontier models (Gemini, GPT, Claude; or DeepSeek, GLM, Kimi, Qwen, Doubao on the China edition) at no cost.
Vertical tabs with auto grouping plus a bookmark mode that saves full page text forever and lets you search it with AI.
Both are free, Chromium-based AI browsers. The difference is what the AI does for you.
| Dimension | Sigma AI Browser | Tabbit |
|---|---|---|
| Core promise | Private, lightweight AI browsing | Agentic AI workbench that executes tasks |
| AI agent | Assists with simple in-page actions | Multi-step agent runs in separate tab groups |
| Context input | Chat with the current page | @ reference tabs, groups, files, screenshots, bookmarks |
| Automation reuse | Basic templates | Skills marketplace + script Skills |
| Top models | Built-in local AI + cloud chat | Free access to frontier models |
| Platforms | macOS first; Windows/iOS/Android pending | macOS & Windows now |
| Data privacy | Local AI, encrypted, open-source | Free models with consumer data policies |
Feature details change quickly for both products; verify on the official sites before deciding.
The name is shared by several products: Sigma AI Browser (a free private Chromium browser with AI), sigma-ai.com (a B2B data-labeling and model-evaluation company), Sigma Computing (a BI platform), and a Sigma AI app on Google Play.
Yes, the browser is free to download on macOS, with Windows, iOS, and Android listed as coming next. Some premium tools are paid.
It is designed for privacy: local AI keeps data on-device, traffic is protected with TLS 1.3 and DNS-over-HTTPS, and phishing detection is built in. Download only from the official site.
There is no single "Sigma AI" company. Sigmabrowser OÜ makes the browser; sigma-ai.com is a data/evaluation vendor; Sigma Computing is a separate BI company. Check the entity you actually mean.
If you want an AI-native browser that executes multi-step tasks, Tabbit is a strong free alternative for macOS and Windows, with Agent Mode, @ context, and Skills.
That refers to crowd-sourced data annotation roles at sigma-ai.com. Pay varies by region, language, and task type; see their careers page for current rates.
Tabbit is a free AI-native browser that turns "browse" into "done" — Agent Mode, @ context, Skills, and top models at no cost.
Free for macOS & Windows