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Side-by-side comparison ยท AI Browsers & Agents

Grok Bot vs Microsoft Edge 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.

Grok Bot

3.4

From $30/mo

Microsoft Edge

3.9

From $19.99/mo

Comet

3.9

From $5/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Grok subscribers and small teams who want an agent that keeps working through admin, sales and ops jobs in the background.

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

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

AttributeGrok BotMicrosoft EdgeComet
In one lineAlways-on Grok agents with their own cloud computer that work your apps for you.Microsoft's free browser with Copilot built in to read pages, compare tabs and do tasks.Perplexity's free web browser with an assistant that reads your tabs and does tasks.
Pricing modelPaidFreemiumFreemium
Starting price$30/mo$19.99/mo$5/mo
Free plan No Yes Yes
Works with Claude Code No No No

Rating breakdown

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

AttributeGrok BotMicrosoft EdgeComet
Overall rating3.43.93.9
Ease of useHow quickly someone non-technical gets value from it.
3.5
4.5
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.0
3.5
4.0
Output qualityHow good the results are before you fix them.
3.0
3.5
3.5
Value for moneyWhat you get for the price, including the free plan.
3.5
4.0
4.0
Speed & reliabilityHow fast it is and how often it falls over.
3.0
4.0
3.5

Feature comparison

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

AttributeGrok BotMicrosoft EdgeComet
Access & platform
Free plan No Yes Yes
Mobile app Yes Yes Yes
Desktop app Yes Yes Yes
Browser extension No Yes Yes
API access No No No
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes 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 No Yes No
Makes video No No No
Writes code Yes No No
Runs agents or automations Yes Yes Yes
Learns your brand or style No No No
Works in many languages Yes Yes Yes
Capabilities score10/ 1712/ 1711/ 17

Pricing

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

AttributeGrok BotMicrosoft EdgeComet
Plans

X PremiumOur pick

$30/mo

Trying Grok Bot alongside everyday Grok use.

FreeOur pick

Free

Most people: summaries, tab comparisons and Journeys.

FreeOur pick

Free

Everyday browsing with an assistant for summaries and questions.

X Super

$100/mo

Running Bots most days.

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.

Comet Plus

$5/mo

Readers who want partner publishers' paywalled articles.

Enterprise

See website

Companies rolling it out across teams.

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 pickStart on Premium at $30 a month, which already includes Grok Bot, and only move up if you hit the usage limits. If your team already pays for Cursor's top plans, check whether Grok Bot is included before paying for anything else. Plans changed on 12 October, so check x.ai before you buy.Stay 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.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

AttributeGrok BotMicrosoft EdgeComet
Standout features
  • Its own cloud computer
  • Uses your real tools
  • Teach it once
  • Approvals, not hand-holding
  • Bots that work together
  • Desktop and iPhone apps
  • Copilot side panel
  • Journeys
  • Browse with Copilot
  • Memory and history
  • Study, write, listen
  • Voice and Vision on mobile
  • Comet Assistant
  • Browser control
  • Work mode
  • Works like Chrome
  • On every device
  • Comet Plus

Pros and cons

AttributeGrok BotMicrosoft EdgeComet
Pros
  • Keeps working when your laptop is closed
  • Works in tools that have no API or connector
  • Teach a routine once and rerun it
  • No extra cost if you already pay for Grok Premium
  • Several Bots can split up and hand off work
  • 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 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
  • Beta, with no independent testing of how reliably it finishes jobs
  • Security details are thin, and all your Bots share one computer
  • Only available bundled into Grok or Cursor plans
  • No Android app yet
  • Which model powers it isn't published
  • 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
  • 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

AttributeGrok BotMicrosoft EdgeComet
Best for
  • Overnight sales research and draft outreach
  • Keeping a CRM tidy
  • Repetitive jobs in apps with no API
  • Recurring routines you teach it once
  • 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
  • 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
  • Founders
  • Sales teams
  • Operations managers
  • Grok power users
  • Office workers
  • Small business owners
  • Students
  • Windows users
  • Researchers
  • Marketers
  • Students
  • Founders

Questions people ask

Which is better, Grok Bot, Microsoft Edge or Comet?

They tie on our overall rating (Grok Bot 3.4/5, Microsoft Edge 3.9/5 and Comet 3.9/5). Grok Bot is best for overnight sales research and draft outreach and keeping a CRM tidy. Microsoft Edge is best for summarising long pages and PDFs and comparing products or quotes across open tabs. Comet is best for summarising long pages, PDFs and videos and comparing products or suppliers across tabs.

Which is cheaper, Grok Bot, Microsoft Edge or Comet?

Grok Bot: There's no free plan. Paid plans start at $30/mo. Microsoft Edge: There's a free plan, and paid plans start at $19.99/mo. 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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