In short
Pick by ecosystem: Microsoft 365 user → Copilot. Google Workspace user → Gemini. Heavy creative/multimodal/voice user → ChatGPT. All three are around $20/mo. Power users sometimes run all three at ~$60/mo combined, but most people only need one.
ChatGPT + Gemini
by OpenAI & Google · since 2022-2023
Microsoft Copilot
by Microsoft (using GPT models) · since 2023
Capability scorecard
Scored 0-10. Higher is better.
Copilot lives inside Office; ChatGPT/Gemini are external.
Gemini is native to Workspace; Copilot is external.
ChatGPT slightly ahead; Gemini close; Copilot uses GPT under the hood.
ChatGPT/Gemini have native gen; Copilot uses DALL-E under the hood.
Sora 2 (ChatGPT) and Veo 3 (Gemini Ultra); Copilot has none.
ChatGPT Advanced Voice is best; Copilot voice is basic.
Copilot is the Microsoft-blessed enterprise default.
Custom GPTs + Gemini Gems beat Copilot's plugins.
ChatGPT/Gemini at $20 cover more; Copilot at $20 is narrower but deeply integrated.
All three are accessible; Copilot has the gentlest enterprise onboarding.
When to pick which
Real use cases, decided by quality (not vendor bias).
Drafting an email inside Outlook
Copilot is native; ChatGPT/Gemini require copy-paste.
Building a complex Excel formula
Copilot understands the spreadsheet context; ChatGPT/Gemini need you to paste data.
Drafting a Gmail reply
Gemini native — Copilot doesn't integrate with Gmail.
Creating a presentation from a brief
Copilot in PowerPoint, Gemini in Google Slides, ChatGPT for the script. Pick by tool.
Generating a marketing image
ChatGPT GPT-image-1 quality leads; Gemini close; Copilot uses DALL-E (older).
Real-time research on a hot topic
ChatGPT Deep Research or Gemini Deep Research; Copilot is less research-focused.
Enterprise-deployed AI for 1,000 employees
Copilot for M365 has the IT controls enterprises require.
Voice-driven brainstorm on a walk
ChatGPT Advanced Voice — neither Copilot nor Gemini matches.
The verdict
For 90% of users, the right pick is whichever matches your existing productivity suite. Copilot for Microsoft. Gemini for Google. ChatGPT for everything else (or as a second AI alongside Copilot/Gemini). Don't pay for two unless you have a specific reason.
Frequently asked questions
Doesn't Copilot use GPT?▾
Yes — Microsoft Copilot uses OpenAI's GPT models under the hood. The difference is integration: Copilot embeds GPT inside Word, Excel, PowerPoint, Outlook, and Teams, with enterprise IT controls layered on top.
If Copilot uses GPT, why not just use ChatGPT?▾
Two reasons: (1) deep Office integration — Copilot can read your actual Excel file or Word doc with context, ChatGPT can't; (2) enterprise compliance — Copilot is approved by most corporate IT departments while ChatGPT often isn't.
Is Gemini better than Copilot?▾
For Google Workspace: yes, Gemini wins because it's native. For Microsoft 365: Copilot wins for the same reason. Pick by your suite.
Can I run all three?▾
You can, but at $60+/mo combined, ROI is questionable for most users. Pick the one matching your suite, optionally add ChatGPT for creative/voice/multimodal needs.
Which is best for non-Microsoft, non-Google users?▾
ChatGPT, decisively. It's standalone, has the best feature breadth, and the strongest creative toolset (Sora video, voice mode, image gen, Custom GPTs).
What about Apple Intelligence?▾
Apple Intelligence is a fourth ecosystem layer — uses OpenAI under the hood for the most powerful features. Best for iPhone/Mac users who want light AI without a subscription. Doesn't replace any of these three for heavy use.
Learn to use both — step by step
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