Skip to content

Side-by-side comparison ยท AI Browsers & Agents

Claude Cowork vs Dia

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

Claude Cowork

4.1

From $20/mo

Dia

3.6

From $10 to $20/mo (Dia's page shows both)

Comparing 2 tools. Add one more if you like.

At a glance

Best overallBest value

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

Dia3.6
Easiest to use

Pick it if: Office workers and teams who live in Slack, Gmail and Atlassian tools and want their browser to pull it all together.

Overview

AttributeClaude CoworkDia
In one lineClaude's agent mode: hand it a whole task across your files, apps and browser.A work browser from the makers of Arc that answers questions from your tabs and apps.
Pricing modelPaidFreemium
Starting price$20/mo$10 to $20/mo (Dia's page shows both)
Free plan No Yes
Works with Claude Code Yes No

Rating breakdown

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

AttributeClaude CoworkDia
Overall rating4.1Winner3.6
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
3.5
Output qualityHow good the results are before you fix them.
4.5
4.0
Value for moneyWhat you get for the price, including the free plan.
4.0
2.5
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.

AttributeClaude CoworkDia
Access & platform
Free plan No Yes
Mobile app Yes No
Desktop app Yes Yes
Browser extension No No
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 No No
Makes video No No
Writes code Yes No
Runs agents or automations Yes No
Learns your brand or style Yes No
Works in many languages Yes Yes
Capabilities score11/ 178/ 17

Pricing

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

AttributeClaude CoworkDia
Plans

Pro

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

Trying it on a few tasks a week.

Better Browser

Free

People who want a tidy browser without AI.

MaxOur pick

From $100/mo

Anyone handing off tasks every day.

Better AnswersOur pick

$10 to $20/mo (Dia's page shows both)

Anyone who wants the AI chat day to day.

Team

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

Small teams sharing connectors and admin controls.

Better Days

$100/mo

Heavy users who want the full workday assistant.

Enterprise

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

Companies that need admin, spend and security controls.

Dia for Work

See website

Companies rolling it out to staff.

Which plan to pickStart 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.Use the 14-day trial properly, then decide if the chat alone is worth $20 a month to you. Better Days at $100 only makes sense if the Morning Brief and meeting prep save you real time every day. Existing users keep their free AI for now, with 30 days' notice before that changes, and Windows users aren't on the paid plans yet.

Key features

AttributeClaude CoworkDia
Standout features
  • Works in your files
  • Apps and browser
  • Scheduled tasks
  • Parallel sub-agents
  • Start from your phone
  • Plugins for roles
  • Chat with your tabs
  • Connected apps
  • Skills
  • Morning Brief
  • Meeting prep
  • Arc-style tabs

Pros and cons

AttributeClaude CoworkDia
Pros
  • 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
  • Beautiful, calm design that is easy to pick up
  • Asking across several tabs at once works well
  • Connects to the work apps most teams already use
  • Skills save time on repeated prompts
  • Imports from Arc, Chrome and others in a few clicks
Cons
  • 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
  • New Mac users lose the AI after the trial unless they pay $20 or $100 a month
  • Arc users miss Spaces, nested folders and Little Arc
  • No phone app, and Windows only arrived in October 2026
  • Reports of freezes, crashes and heavy battery use on Mac
  • Memory was removed in September 2026, and new sign-ups now need an Atlassian account

Who each one is for

AttributeClaude CoworkDia
Best for
  • 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
  • Asking questions across several open tabs
  • A morning summary of calendar, email and tasks
  • Meeting prep and follow-ups
  • Teams already on Jira and Confluence
  • Arc users who want something still being developed
You'll find it used by
  • Business owners
  • Operations teams
  • Marketers
  • Analysts
  • Lawyers and accountants
  • Office workers
  • Product managers
  • Agencies
  • Former Arc users

Questions people ask

Which is better, Claude Cowork or Dia?

Claude Cowork scores highest overall in our ratings (Claude Cowork 4.1/5 and Dia 3.6/5). Claude Cowork is best for weekly reports built from several sources and organising and cleaning up folders of files. Dia is best for asking questions across several open tabs and A morning summary of calendar, email and tasks.

Which is cheaper, Claude Cowork or Dia?

Claude Cowork: There's no free plan. Paid plans start at $20/mo. Dia: There's a free plan, and paid plans start at $10 to $20/mo (Dia's page shows both).

Which is easier to use, Claude Cowork or Dia?

Dia rates highest for ease of use in our scores. Office workers and teams who live in Slack, Gmail and Atlassian tools and want their browser to pull it all together.

How we compare

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

Swap in another tool

More tools from AI Browsers & Agents in the library.