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Side-by-side comparison ยท AI Browsers & Agents

ChatGPT Work vs Claude Cowork vs Firefox

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

ChatGPT Work

4.0

From $20/mo

Best overall

Claude Cowork

4.1

From $20/mo

Firefox

3.6

Free to start

Comparing 3 tools, the maximum.

At a glance

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

Best overall

Pick it if: Business owners and office teams who want repetitive file, report and admin work done for them without building automations.

Best value

Pick it if: Business owners who want a trusted, independent browser and want to decide for themselves whether AI is on or off.

Claude Cowork scores highest overall, but Firefox gives you more for your money. Which one is right comes down to what you value most.

Overview

AttributeChatGPT WorkClaude CoworkFirefox
In one lineChatGPT's agent mode: hand it a whole task across your email, apps, files and browser.Claude's agent mode: hand it a whole task across your files, apps and browser.Mozilla's free browser with optional AI you can switch off with one setting.
Pricing modelFreemiumPaidFree
Starting price$20/mo$20/moFree
Free plan Yes No Yes
Works with Claude Code No Yes No

Rating breakdown

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

AttributeChatGPT WorkClaude CoworkFirefox
Overall rating4.04.1Winner3.6
Ease of useHow quickly someone non-technical gets value from it.
4.0
4.0
3.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.5
3.0
Output qualityHow good the results are before you fix them.
4.0
4.5
3.5
Value for moneyWhat you get for the price, including the free plan.
4.0
4.0
4.5
Speed & reliabilityHow fast it is and how often it falls over.
3.5
3.5
3.5

Feature comparison

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

AttributeChatGPT WorkClaude CoworkFirefox
Access & platform
Free plan Yes No Yes
Mobile app Yes Yes Yes
Desktop app Yes Yes Yes
Browser extension No No No
API access No No No
Teams & business
Team workspace Yes Yes No
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 No
Understands images Yes Yes No
Makes images Yes No No
Makes video No No No
Writes code Yes Yes No
Runs agents or automations Yes Yes No
Learns your brand or style No Yes No
Works in many languages Yes Yes Yes
Capabilities score12/ 1711/ 176/ 17

Pricing

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

AttributeChatGPT WorkClaude CoworkFirefox
Plans

Free

Free

Trying a task or two on desktop.

Pro

$20/mo, or $17/mo billed yearly

Trying it on a few tasks a week.

FirefoxOur pick

Free

Everyone, with AI on or off as you choose.

PlusOur pick

$20/mo

Handing off a few jobs a week.

MaxOur pick

From $100/mo

Anyone handing off tasks every day.

Smart Window beta

Free

Heavy researchers in the US, Canada or France.

Pro

From $100/mo

Anyone running agent tasks every day.

Team

$25/seat/mo, or $20/seat/mo billed yearly

Small teams sharing connectors and admin controls.

Business

See website

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

Enterprise

From $20/seat/mo yearly plus usage, 20-seat minimum

Companies that need admin, spend and security controls.

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.Start on Pro to see which jobs it handles well for you. If you hand it real work most days you will hit the limits, and Max is the plan that makes it a daily tool.There's nothing to pay. Use the sidebar with whatever AI account you already have. If you're in the US, Canada or France, try Smart Window with a free Mozilla account. Everyone else can join the waitlist.

Key features

AttributeChatGPT WorkClaude CoworkFirefox
Standout features
  • Works across your apps
  • Its own browser
  • Scheduled and triggered tasks
  • Finished outputs
  • Runs in the cloud
  • Desktop app access
  • Works in your files
  • Apps and browser
  • Scheduled tasks
  • Parallel sub-agents
  • Start from your phone
  • Plugins for roles
  • Smart Window (beta)
  • Pick your chatbot
  • Link previews
  • Choice of models
  • Optional memory
  • AI Controls

Pros and cons

AttributeChatGPT WorkClaude CoworkFirefox
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
  • Handles real multi-step business work, not just chat answers
  • Output files (decks, spreadsheets, documents) are usually ready to use
  • No separate subscription if you already pay for Claude
  • Scheduled tasks and phone hand-off make it feel like an assistant
  • Plans first and asks before big actions, so you stay in control
  • Every AI feature is optional and free
  • One switch blocks all AI, and stays off through updates
  • Open source, from a non-profit-owned company
  • Use the chatbot you already pay for
  • Link previews run on your own computer
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
  • Agent tasks burn through usage limits quickly, especially on Pro
  • Long or complex jobs sometimes stall or produce wrong results
  • Scheduled tasks need your computer awake with Claude open
  • Files with hidden instructions can manipulate it, and screen control has no sandbox
  • Still rolling out: Team and Free don't have the merged version yet
  • Smart Window is only in the US, Canada and France, and still beta
  • No agent that clicks through sites or fills in forms
  • The sidebar is just the chatbot's website in a panel
  • Smart Window needs a Mozilla account and has daily limits
  • A Smart Window bug pulled in browsing from before people opted in, since fixed

Who each one is for

AttributeChatGPT WorkClaude CoworkFirefox
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
  • Weekly reports built from several sources
  • Organising and cleaning up folders of files
  • Turning receipts or exports into spreadsheets
  • Reviewing a batch of documents against a checklist
  • Recurring admin on a schedule
  • Keeping AI out of the browser entirely
  • Using your own ChatGPT or Claude in a sidebar
  • Summarising and tidying lots of open tabs (US, Canada, France)
  • A browser not owned by an ad or AI company
You'll find it used by
  • Business owners
  • Operations teams
  • Marketers
  • Analysts
  • Sales teams
  • Business owners
  • Operations teams
  • Marketers
  • Analysts
  • Lawyers and accountants
  • Privacy-minded owners
  • Researchers
  • Developers
  • Teams with AI rules

Questions people ask

Which is better, ChatGPT Work, Claude Cowork or Firefox?

Claude Cowork scores highest overall in our ratings (ChatGPT Work 4.0/5, Claude Cowork 4.1/5 and Firefox 3.6/5). ChatGPT Work is best for sorting inbox and calendar admin across connected apps and weekly reports and reviews on a schedule. Claude Cowork is best for weekly reports built from several sources and organising and cleaning up folders of files. Firefox is best for Keeping AI out of the browser entirely and using your own ChatGPT or Claude in a sidebar.

Which is cheaper, ChatGPT Work, Claude Cowork or Firefox?

ChatGPT Work: There's a free plan, and paid plans start at $20/mo. Claude Cowork: There's no free plan. Paid plans start at $20/mo. Firefox: It's free and open source.

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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