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SigmaOS

SigmaOS is a browser that organizes tabs as tasks, features workspaces, and includes an AI assistant 'Airis' for summarization, Q&A, and search. It treats the browser as a to-do list, with every tab being a 'task' that can be marked as done, and features an AI assistant 'Airis' for text rewriting and page summarization to enhance workflow.

shipped Jul 7, 2026free
Domain rating51Monthly visits16K/mo
SigmaOS - AI tool hero image

Why it matters

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About SigmaOS

Business Model
Subscription SaaS
Platforms
macOS
Target Audience
Anyone who craves a better browser experience.

Pricing Plans

Personal
Free
  • Unlimited workspaces
  • Fast ad-blocker
  • Limited Airis Assistant
Personal Pro
$20 / monthly
  • Unlimited Advanced Airis (GPT-4o)
  • Look it up (high usage)
  • Interactive Summaries (high usage)
Personal Max
$30 / monthly
  • More LLM Models (Llama, Claude…)
  • Unlimited Look it up queries
  • Unlimited Interactive Summaries

overview

Overview

SigmaOS is a browser that organizes tabs as tasks, features workspaces, and includes an AI assistant 'Airis' for summarization, Q&A, and search. It treats the browser as a to-do list, with every tab being a 'task' that can be marked as done, and features an AI assistant 'Airis' for text rewriting and page summarization to enhance workflow.

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