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

Comparison scorecard

Criterion-by-criterion results for Microsoft 365 Copilot and ChatGPT. Numeric bars appear only when both products have approved scores.

  • Starting pricing

    Published floor price and what that floor actually includes.

    Depends

    Microsoft 365 Copilot Business starts around $21/user/mo annual on a qualifying M365 base; ChatGPT Plus is $20/mo (Business from ~$20/seat annual) — confirm live packaging.

    Microsoft 365 CopilotDepends
    ChatGPTDepends

  • Free plan

    Whether a usable free plan is published, and what it gates.

    ChatGPT

    Better for free plan

    Microsoft 365 CopilotWeaker
    ChatGPTStronger

  • User / licence minimum

    Seat floors, per-employee minimums, and small-team pricing traps.

    Depends

    Copilot requires a qualifying Microsoft 365 licence; ChatGPT Business has a published 2-seat floor — confirm before budgeting.

    Microsoft 365 CopilotDepends
    ChatGPTDepends

  • LLM assistant depth

    Chat, reasoning, and general-purpose assistant depth for the primary job.

    ChatGPT

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

    Microsoft 365 CopilotWeaker
    ChatGPTStronger

  • Writing assistance

    Long-form writing, editing, and document analysis quality.

    ChatGPT

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

    Microsoft 365 CopilotWeaker
    ChatGPTStronger

  • Voice / TTS depth

    Speech, voice mode, and text-to-speech capability when relevant.

    ChatGPT

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

    Microsoft 365 CopilotWeaker
    ChatGPTStronger

  • Agent / builder depth

    Custom projects, agents, GPTs, and workflow builders beyond bare chat.

    Tie

    Microsoft 365 Copilot and ChatGPT are close on agent / builder depth (8/10 vs 8/10). Scores reflect AI job-cluster fit from vendor documentation.

    Microsoft 365 CopilotTie
    ChatGPTTie

  • Governance & privacy

    Admin controls, data retention, and enterprise privacy packaging.

    Microsoft 365 Copilot

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

    Microsoft 365 CopilotStronger
    ChatGPTWeaker

  • Integrations

    Important third-party integrations.

    Microsoft 365 Copilot

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

    Microsoft 365 Copilot10/10
    ChatGPT9/10

  • Usage / credits model

    How free caps, seats, credits, and overages affect real cost.

    ChatGPT

    ChatGPT leads on usage / credits model (6/10 vs 8/10). Scores reflect AI job-cluster fit from vendor documentation.

    Microsoft 365 CopilotWeaker
    ChatGPTStronger

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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.