AI Deck

Dia Browser — An AI browser that reads your open tabs to summarize, compare, and draft without leaving the page

A Chromium-based web browser built around AI by The Browser Company, the team behind Arc. It launched in beta in June 2025 and later moved under Atlassian, shifting toward being “a browser for work.” Its defining trait is that the AI can read the tabs you already have open. Summarizing an article, comparing several tabs side by side, drafting an email based on what is on screen — all of it happens inside the browser, with no copying and pasting into a separate chat tool.

Key Features

  • Conversation grounded in your tabs: Ask a question from the sidebar and the AI answers after reading the page you are on. Requests like “give me the three key points of this article” or “which parts of this spec apply to me” work without pasting a URL or the body text
  • Reading across multiple tabs: Several open tabs can be used as context at once. You can have it build a comparison table from three pricing pages, or pull out the common threads across a set of articles
  • Skills (shortcuts for recurring prompts): Register instructions you use often and call them with a single click. Translation, summarization, code explanation, and reply drafts written in a consistent voice all become one-step actions
  • Connections to work tools: Connects to Slack, Gmail, Notion, Outlook, GitHub, Google Calendar, Figma, and others, so it can search and answer across both the browser context and internal information (paid plans)
  • Morning Brief and report generation: Offers a morning briefing that pulls together your schedule, inbox, and relevant links, plus meeting prep notes and reports or decks assembled from connected sources (higher tier)
  • Solid browser fundamentals: Profiles, tab groups, split view, picture-in-picture, ad and tracker blocking, and cross-device sync are included at no cost. Being Chromium-based, it keeps existing extensions and familiar behavior, which makes switching easier

Pricing

PlanMonthly PriceWhat’s Included
Better Browser$0The full browser feature set (profiles, tab groups, split view, ad and tracker blocking, sync). AI usage is limited
Better Answers$20Adds AI conversation on any page, answers informed by connected work tools, and models that do not store your data
Better Days$100Adds 6x the task and chat allowance, Morning Brief, generated reports, decks, and recaps, plus prep and follow-up for meetings

Pricing is current as of August 2026. Check the official site for the latest rates, including whether annual plans are offered.

Pros & Cons

Pros

  • Removes the copy-and-paste round trip into a separate chat tool, shortening the path from research to draft
  • Comparing and organizing across multiple tabs fits product evaluation and competitive research well
  • Chromium-based, so moving over from your everyday browser costs little in extensions or muscle memory
  • Ad and tracker blocking and cross-device sync are available at no cost
  • Skills mean you stop rewriting the same instructions over and over

⚠️ Cons

  • As of August 2026 it is macOS only (Apple silicon machines). A Windows version is still at the sign-up stage
  • The free plan limits AI usage, so daily use effectively requires a paid plan
  • Answers are grounded in page content but can still contain errors, so summaries and comparison tables need to be checked against the source
  • Work tool connections are convenient but send internal information to an external service, so organizations should confirm their policy first
  • Following the acquisition and change of direction, plan structure and feature names have shifted at a fairly quick pace

Comparison with Similar Services

CriteriaDia BrowserCometChatGPT AtlasMicrosoft Edge (Copilot)
ProviderThe Browser Company (Atlassian)PerplexityOpenAIMicrosoft
BaseChromiumChromiumChromiumChromium
StrengthReading tabs and work tool integrationDepth of search and researchTight coupling with ChatGPTIntegration with Windows and Office
Supported OSmacOS (Windows in progress)macOS / WindowsmacOS / WindowsWindows / macOS and others
Free usageBrowser features free, AI limitedFree tier availableFree tier availableFree

Who Is It For

  • People whose daily work involves reading large volumes of articles and documents and distilling the key points
  • Anyone who frequently evaluates multiple products or services and ends up with a lot of open tabs
  • People who want to shorten the flow from research straight into writing — articles, reports, email replies
  • Knowledge workers who want to handle information scattered across Slack and Notion alongside browser context
  • Mac users already on a Chromium-based browser, for whom switching is straightforward

Summary

Dia Browser aims to eliminate the step of carrying content out to an AI in the first place. Being able to talk about what is in your tabs pays off most in work that involves heavy reading and writing. That said, as of August 2026 it is macOS only, and everyday use effectively assumes a plan starting at $20 per month. A reasonable order is to start with the free Better Browser tier to see whether it suits your browsing, then consider a higher tier once the AI features prove their worth.

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