Tabbit vs Arc

We make Yab, the third column.facts checked Oct 9 ↓

Tabbit is a free Chromium AI browser for Mac and Windows from Lumina Lab in Singapore, with chat, an agent mode and a choice of many vendors’ models.

Arc is The Browser Company’s Chromium browser for Mac and Windows that put tabs down the side, with spaces, folders and Split View. It has had no new features since May 2025; it still gets security fixes, and its makers point people to Dia.

The short answer

Pick Tabbit

if you want a free agent browser with a wide choice of models, Chinese ones included
if you want the same AI browser on Windows and Mac
if you want Codex or Claude Code to use your signed-in sessions through its command line

Pick Arc

if you use it today and want its sidebar, spaces and Split View exactly as they are
if you want a free browser with no paid AI plans
if you need the same layout on Windows

Or Yabours

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

Tabbit and Arc, with Yab beside them for a Mac.

Tabbit vs Arc
What	Tabbit	Arc	Yab
Made by	Lumina Lab (LUMINALAB PTE. LTD., Singapore)	The Browser Company (Atlassian)	Serafim Korablev
Status	Updated	Security fixes only	Updated
Runs on	Mac and Windows	Mac and Windows	Mac
Phone app	Only for its Chinese edition, in Chinese; tabbit.ai lists mobile as planned	Arc Search on iPhone, iPad and Android; on iPhone it shows your desktop spaces and pins	Not yet
Price	Free with a weekly AI allowance; Pro $30/month	Free; its Arc Max AI helpers are free too	Free; its AI runs on your own Claude or ChatGPT plan
AI	An agent that works in pages, on its own AI service	Chat about pages, on its own AI service	An agent that works in pages, on your Claude or ChatGPT plan
Driven by outside agents	a command line	No	MCP and a command line
Engine	Chromium	Chromium	WebKit
Tabs down the side	Yes	Yes	Yes
Spaces	Not stated	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.

AITabbit leads

Only Tabbit has an agent that clicks, types and finishes tasks in your pages. Tabbit chats with your tabs, files and screenshots, and its agent mode runs multi-step tasks in tab groups of its own, on GPT, Claude, Gemini, DeepSeek, Kimi, Qwen or GLM. Arc Max helpers tidy tab titles and downloads, preview links and put ChatGPT in the command bar; Ask on Page was removed in August 2025, and there is no agent.

Agents like Claude Code and CodexTabbit leads

Tabbit can be driven over a command line, through the Tabbit command line, with a skill for Codex, Claude Code and Cursor. Arc has no MCP server or command line for outside agents.

Tabs and windowsArc leads

Tabbit has tabs down the side, Split View and folders in the sidebar. Arc has tabs down the side, spaces, Split View, folders in the sidebar and tabs that sleep.

PriceArc leads

Tabbit: Free with a weekly AI allowance; Pro $30/month. Arc: Free; its Arc Max AI helpers are free too.

Where it runseven

Both run on Mac and Windows. On a Mac, Tabbit needs macOS 13 or later and Arc needs macOS 13 or later. On the phone, Tabbit: only for its Chinese edition, in Chinese; tabbit.ai lists mobile as planned. On the phone, Arc: Arc Search on iPhone, iPad and Android; on iPhone it shows your desktop spaces and pins.

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.

PrivacyTabbit leads

Tabbit has an ad blocker built in. Tabbit sends prompts and pages you share to the model vendor you pick, on servers in Singapore or your region; its maker says it doesn’t train on your data. Arc has no ad blocker of its own. Arc needs an account; The Browser Company says it doesn’t see which sites you visit, and Arc Max sends page data to OpenAI and Anthropic.

UpdatesTabbit leads

Tabbit is updated as usual. Arc: No new features since May 2025; Chromium security updates still come, the latest on October 8, 2026.

What their pages don’t lead with

Real limits, from the makers’ own words and our own use.

Tabbit

Top models and heavy agent use need Pro at $30 a month
The free AI is a weekly allowance, larger only if Tabbit is your default browser
No Linux or phone apps yet
No MCP server documented, only its command line

Arc

No new features since May 2025, only security updates
Needs an Arc account
No ad blocker of its own
On phones, Arc Search is a separate search app

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

September 8, 2026Tabbit: Tabbit CLI lets coding agents drive the browser with your logins
August 21, 2026Tabbit: Version 1.11 dropped macOS 12; macOS 13 or later required
June 9, 2026Tabbit: Version 1.0 released after a 100-day public beta
October 21, 2025Arc: Atlassian completed its purchase of The Browser Company
August 28, 2025Arc: Ask On Page removed from Arc Max
May 26, 2025Arc: The Browser Company stopped feature work on Arc to focus on Dia

Questions

Is Tabbit free?

Yes, with limits on its AI. Free with a weekly AI allowance; Pro $30/month.

Is Arc free?

Yes. Free; its Arc Max AI helpers are free too.

Which has an AI agent, Tabbit or Arc?

Tabbit. Tabbit chats with your tabs, files and screenshots, and its agent mode runs multi-step tasks in tab groups of its own, on GPT, Claude, Gemini, DeepSeek, Kimi, Qwen or GLM. Arc Max helpers tidy tab titles and downloads, preview links and put ChatGPT in the command bar; Ask on Page was removed in August 2025, and there is no agent.

Do Tabbit and Arc run on Windows?

Yes, both. Tabbit runs on Mac and Windows; Arc on Mac and Windows.

Do Tabbit and Arc have phone apps?

On the phone, Tabbit: only for its Chinese edition, in Chinese; tabbit.ai lists mobile as planned. On the phone, Arc: Arc Search on iPhone, iPad and Android; on iPhone it shows your desktop spaces and pins.

Can I move from Arc to Tabbit?

Yes: Tabbit’s own help says it brings in from Arc.

Is Arc still being updated?

No new features since May 2025; Chromium security updates still come, the latest on October 8, 2026.

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 Tabbit; an agent in your signed-in tabs like Tabbit’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

Tabbit vs Dia Tabbit vs Comet Tabbit vs Atlas Tabbit vs Opera Neon Tabbit vs Chrome Tabbit vs Safari Tabbit vs Edge Tabbit alternatives Yab vs Tabbit Vivaldi vs Arc Zen vs Arc Orion vs Arc SigmaOS vs Arc Arc vs Chrome Arc vs Safari Arc vs Edge Arc alternatives Yab vs Arc

Sources, read October 9, 2026. Something out of date? Write to hello@serafimlabs.io and we fix it.

Yab, Yet Another Browser.

Free for the Mac. Arc’s sidebar, your own Claude or ChatGPT as the agent, Chrome extensions on WebKit.

it’s freeMove from Arc Download