SoftwareGlimpse

Microsoft 365 Copilot vs ChatGPT

Choose Microsoft 365 Copilot when the primary job is an LLM assistant inside Microsoft 365 — not a standalone chat tab and not GitHub Copilot. Choose ChatGPT when a general-purpose LLM assistant with custom projects, connectors, and a clear team upgrade path is the primary job. Overall: Microsoft 365 Copilot 8.2 vs ChatGPT 8.7. Not hands-on lab tested; confirm live pricing and usage caps. Compare published pricing, LLM depth, writing, voice, agents, governance, integrations, and usage models.

Independently recommendedLast updated Aug 18, 20265 evidence sources8 screenshotsHow we compare
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Microsoft 365 Copilot logo

Microsoft 365 Copilot

8.2/10

Workspace LLM assistant add-on — Copilot Business from $21/user/mo annual; Enterprise add-on $30/user/mo annual on a qualifying Microsoft 365 base licence.

Best for

  • • Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
  • • IT buyers who need tenant admin and Graph grounding
  • • Enterprises already paying for E3/E5 who can absorb the $30 add-on

Starting from $21.00/user/mo

No free plan

Visit Microsoft 365 Copilot
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Our verdict

Our verdict

ChatGPT is the stronger overall fit

Choose Microsoft 365 Copilot when the primary job is an LLM assistant inside Microsoft 365 — not a standalone chat tab and not GitHub Copilot. Choose ChatGPT when a general-purpose LLM assistant with custom projects, connectors, and a clear team upgrade path is the primary job. Overall: Microsoft 365 Copilot 8.2 vs ChatGPT 8.7. Not hands-on lab tested; confirm live pricing and usage caps.

Microsoft 365 Copilot is better for

  • ✓ Governance & privacy
  • ✓ Integrations

ChatGPT is better for

  • ✓ Free plan
  • ✓ LLM assistant depth
  • ✓ Writing assistance
  • ✓ Voice / TTS depth

Tie

  • • Agent / builder depth

Choose Microsoft 365 Copilot if: Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams

Choose ChatGPT if: Teams and individuals wanting a mainstream general-purpose LLM assistant

See detailed comparison ↓
Stronger overall fit
ChatGPT logo

ChatGPT

8.7/10

General-purpose LLM assistant — Free; Plus $20/mo; Business from $20/seat annual ($25 monthly, 2-seat min); Pro from $100; Enterprise contact.

Best for

  • • Teams and individuals wanting a mainstream general-purpose LLM assistant
  • • Buyers who need custom GPT projects and broad model access on Plus/Pro
  • • Orgs standardizing on OpenAI with Business admin and connector depth

Starting from $20.00/user/mo

Free plan available

Visit ChatGPT
Read review

Microsoft 365 Copilot vs ChatGPT at a glance

Criterion-level leaders from verified research.

Full scorecard →

Scorecard preview

Criterion leaders based on verified research — open the Scorecard tab for evidence detail.

  • Starting pricingDepends

    Microsoft 365 Copilot

    ChatGPT

  • Free planChatGPT

    Microsoft 365 Copilot

    ChatGPT

  • User / licence minimumDepends

    Microsoft 365 Copilot

    ChatGPT

  • LLM assistant depthChatGPT

    Microsoft 365 Copilot

    ChatGPT

  • Writing assistanceChatGPT

    Microsoft 365 Copilot

    ChatGPT

Which Ai is better for you?

Quick picks based on fit — not a universal ranking.

  • → Microsoft 365 Copilot

    Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams

    Pick Microsoft 365 Copilot for Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams.

  • → Microsoft 365 Copilot

    IT buyers who need tenant admin and Graph grounding

    Pick Microsoft 365 Copilot for IT buyers who need tenant admin and Graph grounding.

  • → Microsoft 365 Copilot

    Enterprises already paying for E3/E5 who can absorb the $30 add-on

    Pick Microsoft 365 Copilot for Enterprises already paying for E3/E5 who can absorb the $30 add-on.

  • → ChatGPT

    Teams and individuals wanting a mainstream general-purpose LLM assistant

    Pick ChatGPT for Teams and individuals wanting a mainstream general-purpose LLM assistant.

  • → ChatGPT

    Buyers who need custom GPT projects and broad model access on Plus/Pro

    Pick ChatGPT for Buyers who need custom GPT projects and broad model access on Plus/Pro.

  • → ChatGPT

    Orgs standardizing on OpenAI with Business admin and connector depth

    Pick ChatGPT for Orgs standardizing on OpenAI with Business admin and connector depth.

The biggest differences

Where the products diverge most clearly on verified criteria.

  • Free plan

    ChatGPT wins

    Microsoft 365 Copilot

    Trails ChatGPT on this criterion

    ChatGPT

    Better for free plan

  • LLM assistant depth

    ChatGPT wins

    Microsoft 365 Copilot

    Trails ChatGPT on this criterion

    ChatGPT

    ChatGPT leads on LLM assistant depth (8/10 vs 9/10). Scores reflect AI job-cluster fit from vendor documentation.

  • Writing assistance

    ChatGPT wins

    Microsoft 365 Copilot

    Trails ChatGPT on this criterion

    ChatGPT

    ChatGPT leads on writing assistance (8/10 vs 9/10). Scores reflect AI job-cluster fit from vendor documentation.

  • Voice / TTS depth

    ChatGPT wins

    Microsoft 365 Copilot

    Trails ChatGPT on this criterion

    ChatGPT

    ChatGPT leads on voice / TTS depth (8/10 vs 9/10). Scores reflect AI job-cluster fit from vendor documentation.

  • Governance & privacy

    Microsoft 365 Copilot wins

    Microsoft 365 Copilot

    Microsoft 365 Copilot leads on governance & privacy (9/10 vs 8/10). Scores reflect AI job-cluster fit from vendor documentation.

    ChatGPT

    Trails Microsoft 365 Copilot on this criterion

  • Integrations

    Microsoft 365 Copilot wins

    Microsoft 365 Copilot

    Microsoft 365 Copilot leads on integrations (10/10 vs 9/10). Scores reflect AI job-cluster fit from vendor documentation.

    ChatGPT

    Trails Microsoft 365 Copilot on this criterion

Which should you choose?

Choose Microsoft 365 Copilot if

  • Microsoft 365 shops that want AI inside Word, Excel, Outlook, and Teams
  • IT buyers who need tenant admin and Graph grounding
  • Enterprises already paying for E3/E5 who can absorb the $30 add-on

Choose ChatGPT if

  • Teams and individuals wanting a mainstream general-purpose LLM assistant
  • Buyers who need custom GPT projects and broad model access on Plus/Pro
  • Orgs standardizing on OpenAI with Business admin and connector depth

How we compare

A short look at the comparison process. Full methodology

  1. 1

    Collect

    Collect official product information, pricing, and product evidence.

  2. 2

    Normalize

    Map evidence to the same category evaluation criteria for both products.

  3. 3

    Compare

    Evaluate both products against identical criteria — ties and depends are allowed.

  4. 4

    Explain

    Show why each product wins, loses, or ties, with evidence behind the outcome.

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  • No invented scores or prices
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Affiliate disclosure: some links may be affiliate links. We may earn a commission at no extra cost to you. Rankings and scores are never based on commission. Full disclosure

Methodology disclosure: scores and recommendations follow SoftwareGlimpse evaluation criteria (version 1.0.0). Affiliate relationships do not determine rankings.

How we recommend: product claims are tied to recorded research where available.

AI-assisted disclosure: drafts may be AI-assisted from approved facts and assessments. Humans approve publishable editorial judgments. AI does not invent live prices or claim hands-on testing.