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Side-by-side comparison ยท AI Browsers & Agents

Microsoft Edge vs Opera GX vs Comet

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Microsoft Edge

3.9

From $19.99/mo

Opera GX

3.7

Free to start

Comet

3.9

From $5/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Windows and Microsoft 365 users who want AI help with reading, comparing and researching in the browser they already have.

Best value

Pick it if: Gamers and streamers who also work in their browser and want free AI help plus control over how much of their PC the browser takes.

Pick it if: Anyone who researches, compares or reads a lot online and wants an AI helper in the browser without paying for it.

Overview

AttributeMicrosoft EdgeOpera GXComet
In one lineMicrosoft's free browser with Copilot built in to read pages, compare tabs and do tasks.Opera's free gaming browser with resource limits, mods and a free AI sidebar.Perplexity's free web browser with an assistant that reads your tabs and does tasks.
Pricing modelFreemiumFreeFreemium
Starting price$19.99/moFree$5/mo
Free plan Yes Yes Yes
Works with Claude Code No No No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeMicrosoft EdgeOpera GXComet
Overall rating3.93.73.9
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.0
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
3.5
3.0
4.0
Output qualityHow good the results are before you fix them.
3.5
3.5
3.5
Value for moneyWhat you get for the price, including the free plan.
4.0
4.5
4.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
3.5
3.5

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeMicrosoft EdgeOpera GXComet
Access & platform
Free plan Yes Yes Yes
Mobile app Yes Yes Yes
Desktop app Yes Yes Yes
Browser extension Yes No Yes
API access No No No
Teams & business
Team workspace Yes No Yes
Enterprise plan or SSO Yes No Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images Yes Yes Yes
Makes images Yes Yes No
Makes video No No No
Writes code No No No
Runs agents or automations Yes No Yes
Learns your brand or style No No No
Works in many languages Yes Yes Yes
Capabilities score12/ 178/ 1711/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeMicrosoft EdgeOpera GXComet
Plans

FreeOur pick

Free

Most people: summaries, tab comparisons and Journeys.

Free

Free

Everyone. There is no paid tier for the AI.

FreeOur pick

Free

Everyday browsing with an assistant for summaries and questions.

Microsoft 365 Premium

$19.99/mo, or $199.99/yr

US households and sole traders who want the agent and Office apps in one bill.

Free with an Opera accountOur pick

Free

Anyone who wants saved chats and more images.

Comet Plus

$5/mo

Readers who want partner publishers' paywalled articles.

Microsoft 365 Copilot (business)

See website

Companies on Microsoft 365 business plans.

Perplexity Pro

$20/mo, or $200/yr

Anyone who wants the agent to do tasks for them.

Perplexity Max

$200/mo, or $2,000/yr

Heavy users running many tasks in the background.

Which plan to pickStay on free. The side panel, tab comparisons and Journeys cover what most business owners need, and they cost nothing. Microsoft 365 Premium is only worth it if you're in the US and already want Office for the household; don't buy it just for the browser agent, which Microsoft still calls experimental.It's free. Sign in with a free Opera account if you want your chats saved and 100 images a day. Nothing to buy for the AI.Use it free: the sidebar assistant alone is worth having, and most people never need more. Pro makes sense if you want Perplexity's research tools anyway, but don't buy it just for the browser agent, since Pro's credits are a one-off bundle. Nobody needs Max just for the browser.

Key features

AttributeMicrosoft EdgeOpera GXComet
Standout features
  • Copilot side panel
  • Journeys
  • Browse with Copilot
  • Memory and history
  • Study, write, listen
  • Voice and Vision on mobile
  • Opera AI
  • GX Control
  • Hot Tab Killer
  • Mods and themes
  • GX Corner
  • Browser Connector
  • Comet Assistant
  • Browser control
  • Work mode
  • Works like Chrome
  • On every device
  • Comet Plus

Pros and cons

AttributeMicrosoft EdgeOpera GXComet
Pros
  • Already installed on Windows, nothing new to learn
  • Free Copilot reads pages and compares open tabs well
  • Journeys makes it easy to pick research back up
  • Chrome extensions and bookmarks work
  • Strong admin controls for businesses on Microsoft 365
  • Free AI with no account needed
  • GX Control keeps the browser from slowing your PC
  • Same AI quality as Opera One
  • Mods, GX Corner and streaming sidebar that no other browser has
  • Free VPN and an ad blocker that now takes uBlock lists
  • Free on Mac, Windows, Android and iPhone
  • Feels like Chrome, with your extensions and bookmarks
  • Answers about the page come with sources you can check
  • Comet Plus is included with Perplexity Pro and Max
  • Good at summaries and comparing tabs
Cons
  • The agent is US only and needs Microsoft 365 Premium
  • Several features are US or English-language only, so Australian users get less
  • Microsoft calls the agent experimental and warns it can misread instructions
  • Copilot prompts are pushed into many corners of the browser, which some find cluttered
  • Screenshots from agent sessions are kept with the chat for up to 30 days
  • No agent: it can't click or fill in forms for you
  • Heavy at idle unless you set the limits
  • Gamer styling and game promos can feel out of place for work
  • A GX Mods security bug was found and fixed in 2026, so keep it updated
  • Repeated prompt-injection attacks found by researchers in 2025 and 2026; risky with logged-in accounts
  • The agent is slow and sometimes gets stuck or gives up halfway
  • Browser control moved behind Computer credits in September 2026, so Pro users lost an included feature
  • Paying users complain of quiet limits, model downgrades and features being removed
  • Amazon sued over its shopping agent, and the case is still running

Who each one is for

AttributeMicrosoft EdgeOpera GXComet
Best for
  • Summarising long pages and PDFs
  • Comparing products or quotes across open tabs
  • Picking research back up days later with Journeys
  • Businesses already paying for Microsoft 365
  • Working and gaming on the same PC without slowdown
  • Summarising guides, patch notes and YouTube videos
  • Quick answers about a page without leaving it
  • Free AI wallpapers and images
  • Summarising long pages, PDFs and videos
  • Comparing products or suppliers across tabs
  • Quick research while you browse
  • Hands-off form filling and bookings (Pro and Max)
You'll find it used by
  • Office workers
  • Small business owners
  • Students
  • Windows users
  • Gamers
  • Streamers
  • Students
  • Creators
  • Researchers
  • Marketers
  • Students
  • Founders

Questions people ask

Which is better, Microsoft Edge, Opera GX or Comet?

They tie on our overall rating (Microsoft Edge 3.9/5, Opera GX 3.7/5 and Comet 3.9/5). Microsoft Edge is best for summarising long pages and PDFs and comparing products or quotes across open tabs. Opera GX is best for working and gaming on the same PC without slowdown and summarising guides, patch notes and YouTube videos. Comet is best for summarising long pages, PDFs and videos and comparing products or suppliers across tabs.

Which is cheaper, Microsoft Edge, Opera GX or Comet?

Microsoft Edge: There's a free plan, and paid plans start at $19.99/mo. Opera GX: It's free to use. Comet: There's a free plan, and paid plans start at $5/mo.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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