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Side-by-side comparison ยท AI Browsers & Agents

ChatGPT Work 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.

Best overall

ChatGPT Work

4.0

From $20/mo

Comet

3.9

From $5/mo

Comparing 2 tools. Add one more if you like.

At a glance

Best overall

Pick it if: ChatGPT users who want admin, inbox, research and reporting jobs done for them without building automations.

Easiest to use

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

AttributeChatGPT WorkComet
In one lineChatGPT's agent mode: hand it a whole task across your email, apps, files and browser.Perplexity's free web browser with an assistant that reads your tabs and does tasks.
Pricing modelFreemiumFreemium
Starting price$20/mo$5/mo
Free plan Yes Yes
Works with Claude Code No No

Rating breakdown

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

AttributeChatGPT WorkComet
Overall rating4.0Winner3.9
Ease of useHow quickly someone non-technical gets value from it.
4.0
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.0
Output qualityHow good the results are before you fix them.
4.0
3.5
Value for moneyWhat you get for the price, including the free plan.
4.0
4.0
Speed & reliabilityHow fast it is and how often it falls over.
3.5
3.5

Feature comparison

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

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

Pricing

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

AttributeChatGPT WorkComet
Plans

Free

Free

Trying a task or two on desktop.

FreeOur pick

Free

Everyday browsing with an assistant for summaries and questions.

PlusOur pick

$20/mo

Handing off a few jobs a week.

Comet Plus

$5/mo

Readers who want partner publishers' paywalled articles.

Pro

From $100/mo

Anyone running agent tasks every day.

Perplexity Pro

$20/mo, or $200/yr

Anyone who wants the agent to do tasks for them.

Business

See website

Teams that want shared admin and no training on their data.

Perplexity Max

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

Heavy users running many tasks in the background.

Which plan to pickTry it on Plus with a couple of real jobs. If you hand it work most days you'll run out of credits, and that's when Pro or extra credits make sense.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

AttributeChatGPT WorkComet
Standout features
  • Works across your apps
  • Its own browser
  • Scheduled and triggered tasks
  • Finished outputs
  • Runs in the cloud
  • Desktop app access
  • Comet Assistant
  • Browser control
  • Work mode
  • Works like Chrome
  • On every device
  • Comet Plus

Pros and cons

AttributeChatGPT WorkComet
Pros
  • Handles multi-step work across email, calendar and files, not just chat
  • Runs in the cloud, so scheduled tasks don't need your computer on
  • No separate subscription if you already pay for ChatGPT
  • Asks before consequential actions, and you can redirect it mid-task
  • Hands back finished documents, decks and spreadsheets
  • 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
  • Long tasks burn through credits quickly, especially on Plus
  • Long or complex jobs still go wrong and need checking
  • Reads a lot of your email, calendar and chat, which some teams won't accept
  • Only one Gmail account at a time for now
  • 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

AttributeChatGPT WorkComet
Best for
  • Sorting inbox and calendar admin across connected apps
  • Weekly reports and reviews on a schedule
  • Research that ends in a finished document or deck
  • Repetitive web jobs like comparing suppliers or filling in forms
  • Prep notes before meetings and calls
  • 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
  • Business owners
  • Operations teams
  • Marketers
  • Analysts
  • Sales teams
  • Researchers
  • Marketers
  • Students
  • Founders

Questions people ask

Which is better, ChatGPT Work or Comet?

ChatGPT Work scores highest overall in our ratings (ChatGPT Work 4.0/5 and Comet 3.9/5). ChatGPT Work is best for sorting inbox and calendar admin across connected apps and weekly reports and reviews on a schedule. Comet is best for summarising long pages, PDFs and videos and comparing products or suppliers across tabs.

Which is cheaper, ChatGPT Work or Comet?

ChatGPT Work: There's a free plan, and paid plans start at $20/mo. Comet: There's a free plan, and paid plans start at $5/mo.

Which is easier to use, ChatGPT Work or Comet?

Comet rates highest for ease of use in our scores. Anyone who researches, compares or reads a lot online and wants an AI helper in the browser without paying for it.

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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