Browser of you choice - AI Browsers in 2025: Chrome AI Mode vs Edge Copilot vs Perplexity Comet vs ChatGPT Atlas

 OpenAI released yesterday (21/OCT/2025) new browser called Atlas, it was released only for mac operating system. see their landing page

https://chatgpt.com/atlas/get-started/

so which browser is best to browse the internet today.

I still using Google Chrome currently as my favorite choice.

let's start with the bottom line:

Bottom line

Pick the ecosystem you live in, then decide how much autonomy you want to hand the browser. If you want “AI in the margins,” choose Chrome. If you want an assistant that drives, choose Edge Copilot or Comet. If you want ChatGPT everywhere on a Mac, choose Atlas. 

ChatGPT Atlas

It's strange launching new browser not to the mainstream but lets try to compare the current available options for browsers with ai mode ability:

It's very interesting to see the UI, icons , Chatgpt take the browser icon seems look a like a merge between sora icon + telegram 

and to be minimal it take import information from existing safari or chrome.

What it is: OpenAI’s new browser with ChatGPT at the core. Ships macOS first, with a split view that keeps the page and ChatGPT transcript side by side. Agent Mode can take actions for you, and memory personalizes results; both are optional and visible in settings. The Verge+1

Privacy posture: by default, web content you browse isn’t used to train models; you can opt in. Incognito logs ChatGPT out. The agent cannot run code, download files, or install extensions; it pauses on sensitive sites. OpenAI

Gaps: Windows/mobile “coming soon.” If you live on Chrome‑only extensions, wait and reassess once API details land. The Verge+1

lets move to the next new browser "Comet" from Perplexity 

Perplexity Comet

What it is: an AI‑first browser on Chromium. It answers, cites sources, acts on pages, and keeps standard browser comforts. It supports most Chrome extensions, adds a Gmail connector, and ships a built‑in ad blocker. Recently made free for everyone. Perplexity AI+1

Why it’s good: zero‑friction import from Chrome; real actionability for shopping, research, and inbox triage; tab organization smarts. Perplexity AI

Gaps: New Tab is locked to Perplexity by design; you can’t replace it with Momentum/Toby, even via extensions. VPN is “expected,” not here yet. Windows Report

All four ship credible AI. Only two are truly “AI‑first” (Comet, Atlas). Chrome and Edge bolt AI onto browsers you already know. Comet locks you into Perplexity on the new‑tab page but runs most Chrome extensions. Atlas is macOS‑first, leans hard on memory and agents, and keeps training opt‑in. Chrome’s Gemini is the safest bet for mainstream users today; Edge Copilot Mode is the boldest for Windows power users.

Chrome and Edge the old browsers are based on same chromium

Chrome with AI Mode (Gemini in Chrome)

What it is: a measured integration that keeps Chrome feeling like Chrome. You get a Gemini panel that can read the page you’re on, optionally up to 10 of your open tabs, and a new AI Mode entry in the omnibox. “Help me write” is built into any text box. Availability is rolling out, US‑first, 18+. Google Help+2blog.google+2

Why it’s good: stable base, full extensions, Google app connectors (Gmail, Calendar, Drive, Docs) from the Gemini side panel. It’s a productive “copilot,” not a takeover. Google Help

Gaps: agentic automation inside Chrome is still staged; outside the US you may wait. “Help me write” sends page content and the URL to Google to improve the feature; know the trade‑off. blog.google+1

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Edge with Copilot Mode

What it is: a toggle that turns Edge into an agentic browser. Copilot can see all open tabs with permission for multi‑tab context, drive navigation by voice, and use Copilot Vision to “see” your screen and act. Microsoft calls it experimental and free for a limited time. Windows Blog+1

Why it’s good: fastest path to hands‑off workflows on Windows. Clear privacy cues and an opt‑in model for tab/history access. Windows Blog

Gaps: still evolving; some features carry usage limits. If you don’t want new‑tab Copilot UI, leave the mode off. PCWorld+1

Comparison snapshot

Browser	Agentic actions	Uses page/tab context	Extensions	Platforms now	Notables
Chrome + AI Mode (Gemini in Chrome)	Task automation “coming”	Current tab + share up to 10 tabs	Full Chrome ecosystem	Mac/Windows; US first	AI Mode from the omnibox; “Help me write.” blog.google+2Google Help+2
Edge + Copilot Mode	Yes (Actions; voice; “Vision” sees screen)	Multi‑tab context	Full Chromium/Edge	Windows/Mac	Free for a limited time; opt‑in experimental mode. Windows Blog+1
Perplexity Comet	Yes (shopping, forms, email)	Cross‑tab; “Comet Intelligence”	Most Chrome extensions	Mac/Windows (mobile rolling out)	New tab locked to Perplexity; built‑in ad blocker. Free now. Perplexity AI+2Windows Report+2
ChatGPT Atlas	Yes (Agent Mode, Plus/Pro/Business)	Split‑view with persistent sidebar; memory optional	Extension support not announced at launch*	macOS now; Windows/iOS/Android “coming soon”	Privacy‑forward defaults; “cursor chat.” OpenAI+2The Verge+2

Strong take

• Best mainstream pick: Chrome + Gemini/AI Mode. You keep stability and extensions while adding AI where it counts. Agentic features are on Google’s roadmap, but you aren’t a guinea pig. blog.google

• Best for Windows power users: Edge Copilot Mode. It’s the most capable at doing the work for you today. If you’re deep in Microsoft 365, it’s a layup. Windows Blog

• Best AI‑first experience on Chromium: Comet. Great if you want an assistant that acts and you don’t mind the fixed Perplexity start page. Windows Report

• Best for ChatGPT diehards on Mac: Atlas. Agent Mode + memory in a clean macOS app. Expect rapid changes; verify your extension needs before switching. OpenAI+1

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Quick setup notes for your readers

• Chrome: Update Chrome → sign in → turn on Gemini in Chrome and AI Mode; right‑click any text field for Help me write. US/18+ for now. Google Help+1

• Edge: Settings → Copilot Mode toggle. Grant multi‑tab permissions only if you want cross‑tab context. Free, limited‑time experiment. Windows Blog

• Comet: Install → import from Chrome → note that the New Tab is fixed to Perplexity; most Chrome extensions work. Perplexity AI+1

• Atlas (Mac): Download → sign in → decide on Browser Memories and Agent Mode (Plus/Pro/Business). Use split‑view “Ask ChatGPT” on any page. OpenAI+1