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Character.AI vs Microsoft Copilot

Features, pricing, ratings, and pros and cons, side by side.

Microsoft Copilot logo

Microsoft Copilot

Microsoft's AI assistant for chat, writing and research across web, apps and Microsoft 365

Freemium
Visit websiteView details

Verdict

Character.AI and Microsoft Copilot are both AI Assistants tools. Microsoft Copilot scores higher in FinderAtlas's editorial review (8.4 vs 7.6 out of 10), led by value for money. Both have a free plan or trial. Only Microsoft Copilot is available on Windows and macOS.

Best overall

Microsoft Copilot

  • Microsoft 365 users
  • Office workers
  • Students
  • Small businesses

Choose Character.AI if

  • You want a tool built for character role-play.
  • Free tier with unlimited messaging and character creation.
  • Large catalog of user-created characters.

Choose Microsoft Copilot if

  • You want a tool built for drafting and summarizing inside Word.
  • Free tier with chat, image creation and voice on web, desktop and mobile.
  • Built into Word, Excel, PowerPoint, Outlook and Teams for Microsoft 365 subscribers.
Best for beginners
Character.AI
Best for business
Microsoft Copilot

Features

18 features compared.

  • Character chat
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Character creation
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Voice calls
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Memory and pins
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Lorebooks
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Image attachments
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Charms
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Mobile apps
    Character.AI
    Available
    Microsoft Copilot
    Not available
  • Chat
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Image creation
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Voice
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Microsoft 365 integration
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Cowork
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Researcher
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Code
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Notebook and Guided Learning
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Work IQ
    Character.AI
    Not available
    Microsoft Copilot
    Available
  • Auto model picker
    Character.AI
    Not available
    Microsoft Copilot
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Character.AI
    Freemium
    Microsoft Copilot
    Freemium
  • Free plan
    Character.AI
    Yes
    Microsoft Copilot
    Yes
  • Starting price
    Character.AI
    $0
    Microsoft Copilot
    $0
  • Plans
    Character.AI
    3 plans
    Microsoft Copilot
    4 plans

Character.AI plans

  • Free

    $0

    Free chat with ads and slow mode

    • Free messaging
    • Character creation
    • Basic memory
    • 15 pins
    • Basic lorebook

  • (c.ai) lite

    $4.99/month

    Mid-tier plan with fewer ads

    • Fewer ads
    • Better memory
    • 30 pins
    • Detailed memory usage
    • Less slow mode

  • c.ai+

    Most popular

    $9.99/month

    Top tier with no ads

    • No ads
    • Best memory
    • 30 pins
    • Advanced lorebook
    • Highest feature limits
    • No slow mode

Microsoft Copilot plans

  • Copilot Free

    $0

    Free with a signed-in Microsoft account; some features have usage limits

    • Chat
    • Image creation
    • Voice
    • Web research
    • Copilot apps on web
    • desktop and mobile

  • Microsoft 365 Personal

    $9.99/month

    One person; includes desktop Office apps and Copilot with higher usage than free

    • Copilot in Word
    • Excel
    • PowerPoint and Outlook
    • Higher usage than free
    • 1 TB storage

  • Microsoft 365 Premium

    Most popular

    $19.99/month

    Up to 6 people on the plan, with AI features for the owner; replaced Copilot Pro

    • Everything in Family
    • Extensive advanced chat and image creation
    • Premium-only features
    • Limited agentic AI use

  • Microsoft 365 Copilot Business

    $25.20/user/month

    Add-on for small and medium businesses; needs an eligible Microsoft 365 plan

    • Copilot in Microsoft 365 apps
    • Chat grounded in work data
    • Enterprise Data Protection
    • Admin controls
    • Adoption analytics

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

Character.AI
7.6overall
Microsoft Copilot
8.4overall

Character.AI leads in 1 category and Microsoft Copilot in 1.

  • Persona Fidelity & Memory

    Character.AI
    7.8
    Microsoft Copilot
    Not rated

  • Conversational Engagement

    Character.AI
    8.5
    Microsoft Copilot
    Not rated

  • Ease of Use

    Character.AI leads by 0.3
    Character.AI
    8.5
    Microsoft Copilot
    8.2

  • Value for Money

    Microsoft Copilot leads by 0.3
    Character.AI
    7.5
    Microsoft Copilot
    7.8

  • Platform Stability

    Character.AI
    5.5
    Microsoft Copilot
    Not rated

  • Microsoft 365 Integration

    Character.AI
    Not rated
    Microsoft Copilot
    9.3

  • Enterprise Security

    Character.AI
    Not rated
    Microsoft Copilot
    8.8

  • Reasoning & Logic

    Character.AI
    Not rated
    Microsoft Copilot
    8.0

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Character.AI

Pros

  • Free tier with unlimited messaging and character creation
  • Large catalog of user-created characters
  • Text chat plus live voice calls
  • Apps for web, iOS and Android
  • Lower-priced (c.ai) lite plan at $4.99 per month

Cons

  • Company filed for Chapter 11 on October 12, 2026, so the platform's future depends on a sale
  • Free users see ads and slow mode
  • Best memory, lorebook and limits are reserved for c.ai+ at $9.99 per month
  • No public API and no pricing page on the website

Microsoft Copilot

Pros

  • Free tier with chat, image creation and voice on web, desktop and mobile
  • Built into Word, Excel, PowerPoint, Outlook and Teams for Microsoft 365 subscribers
  • Copilot Chat is included with eligible business Microsoft 365 plans at no extra cost
  • Enterprise Data Protection and admin controls in business plans
  • Apps for Windows, macOS, iOS and Android

Cons

  • Consumer premium features require a Microsoft 365 subscription; the standalone Copilot Pro plan is no longer sold
  • Copilot Business is an add-on at $21 to $25.20 per user per month on top of a Microsoft 365 plan
  • Usage limits apply to free and lower tiers, and Microsoft does not publish exact numbers on the pricing page
  • Family plan AI features are for the subscription owner only

Platforms

  • Web
    Character.AI
    Supported
    Microsoft Copilot
    Supported
  • Windows
    Character.AI
    Not supported
    Microsoft Copilot
    Supported
  • macOS
    Character.AI
    Not supported
    Microsoft Copilot
    Supported
  • iOS
    Character.AI
    Supported
    Microsoft Copilot
    Supported
  • Android
    Character.AI
    Supported
    Microsoft Copilot
    Supported
  • API
    Character.AI
    Not supported
    Microsoft Copilot
    Not supported
  • Browser Extension
    Character.AI
    Not supported
    Microsoft Copilot
    Not supported

Integrations

Character.AI

No integrations listed.

Microsoft Copilot

9 integrations
  • Microsoft 365
  • Word
  • Excel
  • PowerPoint
  • Outlook
  • Teams
  • OneNote
  • OneDrive
  • Microsoft Edge

Company

  • Company
    Character.AI
    Character Technologies, Inc.
    Microsoft Copilot
    Microsoft
  • Founded
    Character.AI
    2021
    Microsoft Copilot
    1975
  • Headquarters
    Character.AI
    Menlo Park, CA
    Microsoft Copilot
    Redmond, WA
  • Listing
    Character.AI
    Claimed
    Microsoft Copilot
    Claimed

Frequently asked questions

Is Character.AI better than Microsoft Copilot?

It depends on your workflow. Character.AI is built for character role-play. Microsoft Copilot is built for drafting and summarizing inside Word.

What are the key feature differences between Character.AI and Microsoft Copilot?

Character.AI: Chat, call and role-play with millions of user-made AI characters. Microsoft Copilot: Microsoft's AI assistant for chat, writing and research across web, apps and Microsoft 365.

Does Character.AI or Microsoft Copilot have a free plan?

Yes, both do. Character.AI is freemium and Microsoft Copilot is freemium, and each has a free plan or trial.

Which is cheaper, Character.AI or Microsoft Copilot?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.