Yab vs Orion

We make Yab, so read it as our side.facts checked Oct 9 ↓

Yab, Yet Another Browser, is a free Mac browser that keeps everything from Arc (tabs down the side, spaces, folders, Split View) and gives your Claude or ChatGPT plan an agent that works in your signed-in tabs.

Orion is Kagi’s browser for Mac, iPhone and iPad, on WebKit, the engine Safari uses, that also runs many Chrome and Firefox extensions. It has no telemetry and blocks ads by default.

The short answer

Pick 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

Pick Orion

if you want Safari’s engine with Chrome and Firefox extensions, on Mac and iPhone
if you want ads blocked and no telemetry from the start
if you pay for Kagi Search

At a glance

Yab and Orion, side by side.

Yab vs Orion
What	Yab	Orion
Made by	Serafim Korablev	Kagi
Status	Updated	Updated
Runs on	Mac	Mac and iPhone
Phone app	Not yet	iPhone and iPad; syncs tabs, bookmarks and passwords with your Mac through iCloud
Price	Free; its AI runs on your own Claude or ChatGPT plan	Free; Orion+ supporter plan $5/month, $50/year or $150 once
AI	An agent that works in pages, on your Claude or ChatGPT plan	Chat about pages, on its own AI service
Driven by outside agents	MCP and a command line	No
Engine	WebKit	WebKit
Tabs down the side	Yes	A setting
Spaces	Yes	Yes
Split View	Yes	No
Extensions	Chrome Web Store	Chrome and Firefox stores
Ad blocker	Built in	Built in
Open source	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.

AIYab leads

Only Yab has an agent that clicks, types and finishes tasks in your pages. Yab’s agent works in tabs of its own beside yours, signed in as you, on your Claude or ChatGPT plan; Send, Pay and Delete wait for your yes. Orion sums up pages and videos through Kagi’s Summarizer, with a paid Kagi plan; no chat and no agent. Yab runs on the Claude or ChatGPT plan you already pay for; the other on its own AI.

Agents like Claude Code and CodexYab leads

Yab can be driven over MCP and a command line, through yab mcp and the yab command, for Claude Code, Codex, Cursor and any MCP client. Orion has no MCP server or command line for outside agents.

Tabs and windowsYab leads

Yab has tabs down the side, spaces, Split View, folders in the sidebar and tabs that sleep. Orion has tabs down the side as a setting, spaces, folders in the sidebar and tabs that sleep.

PriceYab leads

Yab: Free; its AI runs on your own Claude or ChatGPT plan. Orion: Free; Orion+ supporter plan $5/month, $50/year or $150 once.

Where it runsOrion leads

Yab runs on Mac. Orion runs on Mac and iPhone. On a Mac, Yab needs macOS 15.4 or later and Orion needs macOS 10.14 or later. Yab has no phone app yet. On the phone, Orion: iPhone and iPad; syncs tabs, bookmarks and passwords with your Mac through iCloud.

Engine and extensionsa matter of taste

Both are built on WebKit, the engine Safari uses. Yab takes extensions from the Chrome Web Store, Orion from both Chrome’s and Firefox’s stores.

Privacyeven

Both have an ad blocker built in. Yab has no account and no server of ours between you and your sites; what your agent reads goes to Anthropic or OpenAI under your account. Orion has no telemetry, Kagi says; page summaries and translations go to Kagi’s servers.

Where Orion is better

Orion comes out ahead on where it runs. It is also the better pick if you:

Want Safari’s engine with Chrome and Firefox extensions, on Mac and iPhone
Want ads blocked and no telemetry from the start
Pay for Kagi Search

The catch with each

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

Orion

Apple only: the Windows and Linux versions stopped on October 2, 2026
Not every extension works: support is partial
No Split View of two tabs
Closed source, and page summaries need a paid Kagi plan

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 2, 2026Orion: Kagi ended Orion for Linux and Windows to focus on Mac and iOS
September 25, 2026Yab: First release
June 23, 2026Orion: Orion 1.1 added per-tab containers and page translation
November 25, 2025Orion: Orion 1.0 for Mac left beta

Questions

Is Yab free?

Yes. Free; its AI runs on your own Claude or ChatGPT plan.

Is Orion free?

The browser is; its AI isn’t. Free; Orion+ supporter plan $5/month, $50/year or $150 once.

Which has an AI agent, Yab or Orion?

Yab. Yab’s agent works in tabs of its own beside yours, signed in as you, on your Claude or ChatGPT plan; Send, Pay and Delete wait for your yes. Orion sums up pages and videos through Kagi’s Summarizer, with a paid Kagi plan; no chat and no agent.

Which runs on Windows, Yab or Orion?

Neither. Yab runs on Mac; Orion on Mac and iPhone.

Do Yab and Orion have phone apps?

Orion does. Yab has no phone app yet. On the phone, Orion: iPhone and iPad; syncs tabs, bookmarks and passwords with your Mac through iCloud.

More comparisons

Orion vs Arc Orion vs Vivaldi Orion vs Zen SigmaOS vs Orion Orion vs Chrome Orion vs Safari Orion vs Edge Orion alternatives

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 freeDownload