Microsoft Copilot vs ChatGPT

Choosing between Microsoft Copilot and ChatGPT? See who wins on speed, accuracy and value — 2026 comparison.

	Microsoft Copilot Best for: AI assistant, autonomous task delegation, M365 integration, Windows AI	ChatGPT Best for: General AI assistant, productivity, coding
Overview	Microsoft Copilot is Microsoft's AI assistant, now built on the GPT-5 family rather than GPT-4. The consumer app defaults to GPT-5/GPT-5.5, Microsoft 365 Copilot runs GPT-5.4 Thinking, and Copilot Chat also lets you pick GPT-5.2 or Anthropic's Claude models.	ChatGPT is OpenAI's conversational AI assistant, now running the GPT-5.6 family (Sol/Terra/Luna) across free and paid tiers, alongside the ChatGPT Work agent and full-duplex GPT-Live voice.
Pricing	Freemium	Freemium
Users	—	1B+
Advantages	✅Runs on the current GPT-5 family (GPT-5/GPT-5.5 consumer, GPT-5.4 Thinking in Microsoft 365) instead of older GPT-4 ✅Copilot Chat lets you switch between GPT-5.2 and Anthropic Claude models (Sonnet 4.5/4.6, Opus) ✅Genuinely useful free tier with cited web search, Think Deeper, voice, and about 15 daily image boosts ✅Deep integration with Word, Excel, PowerPoint, and Outlook on paid tiers ✅Microsoft 365 Premium bundles Copilot, the Office apps, and up to 6 TB of storage for $19.99/mo	✅Default GPT-5.5 (Instant/Thinking) is fast and strong across writing, coding and analysis ✅Genuinely multimodal on the current GPT-5.x stack: text, images, voice, files and browsing ✅Wide pricing ladder from free through the new $8/mo Go tier up to $200/mo Pro ✅Top Pro tier adds a 1M-token context window and Sora video generation ✅Available everywhere: web, desktop, mobile and API
Disadvantages	❌Free tier gives priority model access only when capacity allows and limits image generation ❌The best features require a paid Microsoft 365 subscription ❌Confusing lineup of consumer, Business, and enterprise SKUs with different prices ❌Standalone Copilot Pro was retired in late 2025; old subscriptions stop working after August 1, 2026 ❌Copilot Studio for custom agents is a steep $200/mo	❌Free tier now shows ads to US logged-in adults and has capped usage ❌Can still generate confident but incorrect answers ❌The best features (1M context, Sora, high quotas) require the $100-$200 Pro tiers ❌GPT-5.6 (Sol/Terra/Luna) is limited preview only, not production-ready ❌Costs add up quickly for teams once you move beyond Plus
Rating	…	…
Website	copilot.microsoft.com	chatgpt.com
	Visit →Full review	Visit →Full review

Verdict: Which Should You Choose?

Choose Microsoft Copilot if…

✅ You're deep in the Microsoft ecosystem — Windows, Edge, and Microsoft 365
✅ You want a capable AI assistant for free — Copilot Free runs the latest GPT-5 models with web search and citations, Think Deeper, voice, and image generation
✅ You need AI built into Word, Excel, PowerPoint, and Outlook — Microsoft 365 Copilot runs GPT-5.4 Thinking and can read your own documents, spreadsheets, and email
✅ You want an assistant that lives in your Windows taskbar and Edge browser and works across your files and apps

Choose ChatGPT if…

✅ You want OpenAI's flagship model — ChatGPT defaults to GPT-5.5, with GPT-5.6 available in the API
✅ You use AI for professional work: coding, data analysis, research, and complex writing
✅ You want the broadest feature set — image generation, advanced voice, custom GPTs, and deep research
✅ You build on the API — OpenAI's developer platform is the most mature and widely adopted

Frequently Asked Questions

What is the difference between Microsoft Copilot and ChatGPT?

Both are powered by OpenAI's GPT-5 family, but they're packaged differently. Microsoft Copilot is built into Windows, Edge, and Microsoft 365, and can work directly with your Office files. ChatGPT is OpenAI's standalone product with the widest feature set and its default flagship model, GPT-5.5. Copilot is best if you live in the Microsoft ecosystem; ChatGPT is best for the fullest, most flexible AI experience.

Is Microsoft Copilot free?

Yes. Copilot Free gives you access to the latest GPT-5 models when capacity allows, web search with citations, Think Deeper, voice, and roughly 15 image-generation boosts per day. AI inside the Office apps requires Microsoft 365 Copilot, a paid add-on to a Microsoft 365 subscription.

Does Microsoft Copilot use ChatGPT?

Copilot is powered by the same underlying OpenAI GPT-5 models as ChatGPT, through Microsoft's partnership with OpenAI. Consumer Copilot defaults to GPT-5 / GPT-5.5 with Smart mode and Think Deeper, while Microsoft 365 Copilot runs GPT-5.4 Thinking. It isn't the ChatGPT app itself, but it shares the same model family.

Which is better for Office tasks — Copilot or ChatGPT?

Microsoft 365 Copilot is better inside Office apps because it can read your existing Word documents, Excel spreadsheets, and email to give contextual help, running GPT-5.4 Thinking. ChatGPT requires you to paste content in manually, but is more flexible for open-ended writing and reasoning outside of Office.