YabDia is the AI browser The Browser Company builds now instead of Arc. It is Chromium-based, for Macs with Apple silicon and, since October 2026, Windows, and its AI chats with your tabs and the tools you connect.
Edge is Microsoft’s Chromium browser on every desktop and phone, with Copilot built in. Since Copilot Mode was retired in May 2026, its agent, Browse with Copilot, comes with Microsoft 365 Premium in the US.
The short answer
- if you want the current browser from Arc’s makers, with Arc import and tabs down the side as a setting
- if you want AI that chats across your tabs, Gmail, Slack and Notion, and will pay for it
- if you want a free browser with an ad blocker and no AI
- if you use Microsoft 365 and want Copilot in the browser
- if you want tabs down the side, workspaces, split screen and sleeping tabs built in
- if you work on Windows with Edge set up by your company
- if you miss Arc and want spaces, pins and folders kept, on a Mac
- if you already pay for Claude or ChatGPT and want it to work in your signed-in tabs
- if you want Claude Code, Codex or Cursor to drive a real browser over MCP
At a glance
Dia and Edge, with Yab beside them for a Mac.
| What | Dia | Microsoft Edge | Yab |
|---|---|---|---|
| Made by | The Browser Company (Atlassian) | Microsoft | Serafim Korablev |
| Status | Updated | Updated | Updated |
| Runs on | Mac and Windows | Mac, Windows, Linux, iPhone and Android | Mac |
| Phone app | None | iPhone, iPad and Android; syncs tabs, favorites, passwords and history | Not yet |
| Price | Browser free; AI on Better Answers $20/month or Better Days $100/month | Free, with Copilot; Browse with Copilot needs Microsoft 365 Premium $19.99/month (US) | Free; its AI runs on your own Claude or ChatGPT plan |
| AI | Chat about pages, on its own AI service | An agent that works in pages, on its own AI service | An agent that works in pages, on your Claude or ChatGPT plan |
| Driven by outside agents | No | MCP and a command line | MCP and a command line |
| Engine | Chromium | Chromium | WebKit |
| Tabs down the side | A setting | A setting | Yes |
| Spaces | Yes | Yes | Yes |
| Split View | Yes | Yes | Yes |
| Extensions | Chrome Web Store | Chrome Web Store | Chrome Web Store |
| Ad blocker | Built in | No | Built in |
| Open source | No | No | No |
Checked October 9, 2026 on each maker’s own pages, linked under Sources. Prices are per month, in US dollars.
Where they differ
What separates them, area by area. Where one plainly has more, it says who; where it comes down to taste, it says so.
AIEdge leads
Only Edge has an agent that clicks, types and finishes tasks in your pages. Dia chats with your tabs and the tools you connect, like Gmail, Slack and Notion, and drafts mail and invites; there is no documented agent that works through sites. Copilot reads the page, your tabs and history and sums up videos and PDFs; Browse with Copilot scrolls and types in pages for you, signed in, on Microsoft 365 Premium in the US.
Agents like Claude Code and CodexEdge leads
Dia has no MCP server or command line for outside agents. Edge can be driven over MCP and a command line, through Microsoft’s Playwright MCP, which can launch Edge or attach to your running Edge.
Tabs and windowseven
Both have tabs down the side as a setting, spaces, Split View, folders in the sidebar and tabs that sleep.
PriceEdge leads
Dia: Browser free; AI on Better Answers $20/month or Better Days $100/month. Edge: Free, with Copilot; Browse with Copilot needs Microsoft 365 Premium $19.99/month (US).
Where it runsEdge leads
Dia runs on Mac and Windows. Edge runs on Mac, Windows, Linux, iPhone and Android. On a Mac, Dia needs macOS 14 or later and Edge needs macOS 13 or later. Dia has no phone app. On the phone, Edge: iPhone, iPad and Android; syncs tabs, favorites, passwords and history.
Engine and extensionsa matter of taste
Both are built on Chromium, as Chrome is, so sites work as they do in Chrome. Both take extensions from the Chrome Web Store.
Privacyeven
Dia has an ad blocker built in. Dia’s chat goes through its servers to Anthropic, OpenAI and Google; chats and history stay on your Mac, and content sharing is on by default, kept 30 days. Edge has a VPN. Copilot may use your question, the page, your open tabs and history; Browse with Copilot keeps screenshots up to 30 days, not for training, Microsoft says.
What their pages don’t lead with
Real limits, from the makers’ own words and our own use.
Dia
- AI costs $20 or $100 a month for new users; the free plan has none after a 14-day trial
- On a Mac it needs Apple silicon and macOS 14 or later
- Its AI chats and drafts, but there is no documented agent that works through sites
- No MCP server or command line for outside agents
Microsoft Edge
- Browse with Copilot needs Microsoft 365 Premium ($19.99 a month) and is US only
- Copilot reads pages, tabs and history unless you turn it off
- Workspaces lost sharing in 2026, and Collections were removed
- No ad blocker of its own
Yab, honestly
- Mac only: macOS 15.4 or later, no Windows, iPhone or Android
- New: first released in September 2026
- Its AI needs a Claude or ChatGPT plan; ChatGPT’s free plan may work with low limits
- WebKit, as in Safari: a site tested only in Chrome can misbehave
- Closed source
What changed lately
- October 6, 2026Dia: Dia 1.0 for Windows released
- August 17, 2026Dia: Paid AI plans started rolling out to new Mac users
- June 4, 2026Edge: Collections removed in Edge 149
- May 13, 2026Edge: Copilot Mode retired; its features moved into Edge, and Copilot Actions became Browse with Copilot for Microsoft 365 Premium (US)
- October 21, 2025Dia: Atlassian completed its acquisition of The Browser Company
Questions
Is Dia free?
The browser is; its AI isn’t. Browser free; AI on Better Answers $20/month or Better Days $100/month.
Is Microsoft Edge free?
Yes, with limits on its AI. Free, with Copilot; Browse with Copilot needs Microsoft 365 Premium $19.99/month (US).
Which has an AI agent, Dia or Edge?
Edge. Dia chats with your tabs and the tools you connect, like Gmail, Slack and Notion, and drafts mail and invites; there is no documented agent that works through sites. Copilot reads the page, your tabs and history and sums up videos and PDFs; Browse with Copilot scrolls and types in pages for you, signed in, on Microsoft 365 Premium in the US.
Do Dia and Edge run on Windows?
Yes, both. Dia runs on Mac and Windows; Edge on Mac, Windows, Linux, iPhone and Android.
Do Dia and Edge have phone apps?
Edge does. Dia has no phone app. On the phone, Edge: iPhone, iPad and Android; syncs tabs, favorites, passwords and history.
Can I move from Edge to Dia?
Yes: Dia’s own help says it brings in from Edge.
Is there a third option on a Mac?
Yab, Yet Another Browser, is free for the Mac: tabs down the side with spaces, folders and Split View, as in Dia; an agent in your signed-in tabs like Edge’s, on the Claude or ChatGPT plan you already pay for. Claude Code, Codex and any MCP client can drive it too. It runs on WebKit, the engine Safari uses, and takes Chrome extensions. It is Mac only, and new.
More comparisons
- Dia plans and pricing FAQ
- Dia home page (macOS and Windows, ad and tracker blocking)
- Dia changelog (Chromium M155, Windows 1.0, tab sleep, sidebar or top tabs, AppleScript, memory retired)
- Dia release notes 1.52.0 (Oct 8, 2026)
- Dia download FAQ (import from Chrome, Safari, Edge, Arc)
- Dia security (AI providers, retention, local storage)
- MacRumors: Dia generally available, macOS 14 and Apple silicon
- PiunikaWeb: Dia $20 and $100 plans (Aug 18, 2026)
- Atlassian completes acquisition (Oct 21, 2025)
- Dia home page: ’Available for macOS and Windows’
- PiunikaWeb: Dia ’iPhone Tabs’ menu spotted, no public app (2026-08-25)
- Edge blog: new updates, Copilot Mode retired (2026-05-13)
- Microsoft Support: Browse with Copilot
- Edge policy: AllowBrowsingWithCopilot (macOS 148+)
- Microsoft Support: getting started with Copilot in Edge
- Copilot in Edge page (free limits, upgrade)
- Microsoft 365 plans compared (US prices)
- Edge supported operating systems
- Edge vertical tabs (Windows and macOS)
- Edge policy: SplitScreenEnabled (macOS 117+)
- Edge policy: SleepingTabsEnabled
- Microsoft Support: getting started with Edge Workspaces
- Microsoft Support: Collections retirement
- Edge Secure Network VPN
- Edge for Mac page (Secure Network, password management, sleeping tabs)
- Microsoft Support: Chrome extensions in Edge
- Microsoft Support: what’s imported to Edge (Chrome)
- Microsoft Support: import from Safari on macOS
- Microsoft Learn: Chrome DevTools MCP with Edge
- Playwright MCP (Microsoft, --browser msedge, --extension)
- Playwright CLI (Microsoft)
- Microsoft Support: Sign in to sync Microsoft Edge across devices
- Microsoft Learn: Configure Microsoft Edge enterprise sync
- Microsoft Edge on the App Store (iPhone and iPad)
- Microsoft Edge on Google Play
- Yab Manual: Bringing in from another browser
- Yab Manual: Connecting Claude or ChatGPT
- Yab Manual: Extensions
- Yab Manual: Yab’s tools over MCP
- Yab Manual: Privacy
Yab, Yet Another Browser.
Free for the Mac. Arc’s sidebar, your own Claude or ChatGPT as the agent, Chrome extensions on WebKit.