Microsoft Copilot vs ChatGPT (2026): Which Should You Use?

Short verdict: in the Microsoft Copilot vs ChatGPT decision, choose Microsoft Copilot if your work happens in Word, Excel, PowerPoint, Outlook and Teams, because Copilot works directly inside those files and comes bundled with Microsoft 365 plans from $9.99 a month. Choose ChatGPT if you want the best standalone assistant: stronger writing and research, image generation, memory, the Work agent and Codex for coding, all in a $20 Plus plan that works with any office suite. Many people end up with both, since Copilot is already included in a Microsoft 365 subscription they pay for anyway.

2026 has been a year of big changes for both. Microsoft retired the standalone Copilot Pro plan in favor of Microsoft 365 Premium, announced in August that it would merge consumer Copilot and Microsoft 365 Copilot into one app, and added OpenAI's GPT-6 Sol and Anthropic's Claude Opus 5.5 to Microsoft 365 Copilot in September. OpenAI launched GPT-6 Astra and split ChatGPT into Chat, Work and Codex. This comparison is based on official pricing pages, product announcements and public user feedback, not our own hands-on benchmark. Confirm details on the linked pages before buying.

Microsoft CopilotChatGPT

Quick verdict by use case

• Drafting in Word, analyzing in Excel, building decks in PowerPoint: Copilot. It edits the file you have open.

• Summarizing your Outlook inbox and Teams meetings: Copilot, especially Microsoft 365 Copilot at work.

• Writing quality and long-form drafts: ChatGPT.

• Deep research reports: ChatGPT, with Deep Research and the Work agent. Microsoft is folding research into Microsoft 365 Premium's agents.

• Image generation: ChatGPT, with ChatGPT Images 2.0. Copilot also generates images, with tighter limits on free.

• Coding: ChatGPT with OpenAI Codex. Developers on Microsoft's side should look at GitHub Copilot, a separate product.

• Best free option: close. Copilot's free tier is generous for chat; ChatGPT Free has more features but shows ads in the US.

• Best value if you already pay for Microsoft 365: Copilot, because it is already included.

Is Copilot the same as ChatGPT?

No, though they are related. Microsoft is OpenAI's largest backer, and Copilot has always run largely on OpenAI's GPT models. But Copilot is Microsoft's own product with its own interface, limits, features and data policies. It also no longer depends on OpenAI alone: Microsoft 365 Copilot added Anthropic's Claude Opus 5.5 and Sonnet 5.5 alongside OpenAI's GPT-6 Sol and GPT-6.1 Sol in September 2026, and Microsoft routes some requests to its own in-house MAI models. An auto-router picks the model for many Office requests based on accuracy, speed and cost.

So the same question can get a different answer in Copilot and in ChatGPT, even when both use an OpenAI model underneath. The surrounding product, the instructions Microsoft adds and the data Copilot can see (your Microsoft 365 files) change the result.

One more naming trap: GitHub Copilot is a coding assistant for developers and a different product from Microsoft Copilot. If you came here for coding, see our GitHub Copilot review.

What each tool is in 2026

Microsoft Copilot

Microsoft Copilot is Microsoft's AI assistant across Windows, Edge, the web, iOS and Android, and inside the Microsoft 365 apps. The free app handles chat, web-grounded answers, voice, vision (it can look at your screen or camera) and image creation. Microsoft 365 subscriptions add Copilot inside Word, Excel, PowerPoint, Outlook and OneNote. On September 25, 2026, Microsoft unveiled a rebuilt Copilot app organized into Home (chat, collaboration and embedded Word, Excel and PowerPoint), Code (building apps and automations in plain language) and Autopilot (an always-on agent). Home and Code are rolling out through Microsoft's Frontier early-access program, Autopilot is in private preview for businesses, and Microsoft says Code is coming to Microsoft 365 Premium and Pro subscribers later this year.

Microsoft has also been trimming. As part of the consumer and business app merger, it said it would remove the Mico avatar, Deep Research mode and group chats from consumer Copilot, and in March it began removing what it called unnecessary Copilot entry points from Windows 11 apps like Notepad.

ChatGPT

ChatGPT is OpenAI's general-purpose assistant, now split into Chat, Work (agent jobs that produce documents, spreadsheets and presentations) and Codex (software development). It runs OpenAI's GPT-6 family: Luna, Sol, the new GPT-6.1 Terra and the flagship Astra. It searches the web, analyzes files, generates images, holds voice conversations, remembers context across chats, and connects to Microsoft 365, Google Drive, Slack and GitHub. Our upcoming ChatGPT review covers the whole product.

Pricing: Microsoft 365 with Copilot vs ChatGPT (as of October 2026)

Microsoft prices come from its official Microsoft 365 plan comparison. ChatGPT prices come from ChatGPT pricing and OpenAI's help center. US prices.

The comparison is not apples to apples. Every Microsoft 365 plan includes the Office apps and OneDrive storage, so for many people Copilot costs nothing extra: it arrives with a subscription they already have. ChatGPT Plus is a pure AI subscription with no office suite or storage, but it includes more AI: the Work agent, Codex, Deep Research and better image generation.

Two caveats. Microsoft 365 Family shares the apps with six people, but only the subscription owner gets the AI features. And the old $20 Copilot Pro plan is gone; Microsoft stopped selling it in late 2025, and Microsoft 365 Premium now carries its features.

Value verdict: if you would pay for Microsoft 365 anyway, Premium at $19.99 is the better deal. If you only want an AI assistant, ChatGPT Plus gives you more for the same price.

Microsoft Copilot vs ChatGPT, feature by feature

Office integration: Word, Excel, PowerPoint, Outlook

This is Copilot's reason to exist. In Word it drafts, rewrites and summarizes inside your document. In Excel it explains formulas, builds tables and charts, and, in recent Microsoft 365 Copilot updates, creates interactive dashboards that update as data changes. In PowerPoint it turns a document into a deck and adds timeline and comparison slides. In Outlook it summarizes threads and drafts replies following your instructions.

ChatGPT can work with Office files, but from the outside. You upload a workbook or document, ChatGPT analyzes it and hands back a new file. Its connectors can read from SharePoint, OneDrive and Outlook, and the Work agent can produce finished Word, Excel and PowerPoint files. That is powerful, but it is a round trip, not editing in place. For spreadsheet-specific tools, see our best AI Excel tools guide.

Winner: Copilot.

Writing quality

For general writing, public user feedback still favors ChatGPT. It follows formatting instructions closely, keeps a consistent tone across long drafts, and is easier to steer with examples or a style guide. Copilot writes competently and has the advantage of context, since in Word or Outlook it can draw on your document or thread. Because Microsoft 365 Copilot now routes some requests to Claude models, writing quality in the Office apps varies with the model chosen.

Winner: ChatGPT.

Research and web search

Both ground answers in web search and cite sources; Copilot uses Bing. ChatGPT's Deep Research reads dozens of sources and writes a structured report, and the Work agent turns research into documents or slides. Microsoft is removing Deep Research mode from consumer Copilot and positioning agentic research and analytics as a Microsoft 365 Premium feature. At work, Microsoft 365 Copilot's strength is internal research across your email, meetings and SharePoint files.

For quick cited answers, a dedicated answer engine may beat both; our Perplexity vs ChatGPT comparison covers that.

Winner: ChatGPT for web research; Copilot for research across your own Microsoft 365 data.

Images, voice and vision

ChatGPT uses ChatGPT Images 2.0, which renders text accurately and handles complex layouts. Copilot also creates images, with higher limits on paid Microsoft 365 plans. Both have real-time voice. Copilot Vision can look at your screen in Windows and Edge or through your phone camera and talk you through what it sees, which is handy for help with settings or software. ChatGPT's voice mode is the more popular conversational partner. Neither offers video generation: OpenAI discontinued Sora in April 2026.

Winner: ChatGPT for images; Copilot for screen help on Windows.

Agents and automation

ChatGPT's agent features are available today on Plus: the Work agent runs multi-step jobs across files and apps, and OpenAI Codex writes and tests code. Microsoft's answers are newer. Cowork, Code and Autopilot are rolling out mainly to businesses and run on usage-based Copilot Credits rather than a flat fee. Autopilot gives each agent its own cloud computer and identity and keeps working while you are offline, and Microsoft CEO Satya Nadella has said he plans to bring it to consumers eventually.

If you want to build your own agents, our best AI agents roundup compares the options.

Winner: ChatGPT for consumers today; Copilot is catching up at work.

Coding

ChatGPT Plus includes Codex, which runs coding tasks in cloud sandboxes and on your machine and returns pull requests. Microsoft splits coding off into GitHub Copilot, a separate subscription that works in VS Code, JetBrains and GitHub itself, and into the new Code section of the Copilot app, which is aimed at non-developers building apps and automations. See our best AI coding tools for the full field.

Winner: ChatGPT within a general assistant subscription.

Memory, personalization and ecosystem

ChatGPT has the more mature personalization: memory across chats, projects, custom instructions and custom GPTs you can share, plus third-party apps inside chat. Copilot has memory and personalization too, plus Notebooks, which keep related chats, generated content and reference files together, and it supports partner apps such as Canva, Adobe Acrobat and Figma through the Microsoft 365 Agent Store. Copilot's real ecosystem advantage is Windows and Office themselves.

Winner: ChatGPT.

Privacy and data controls

For business users, Microsoft 365 Copilot is the stronger story. It inherits your organization's Microsoft 365 permissions, compliance and data residency, and Microsoft says work data is not used to train its foundation models. IT admins can control which model families each group can access. ChatGPT Business and Enterprise also exclude data from training by default and add admin controls.

On consumer plans, both may use conversations to improve their products unless you change the settings. ChatGPT offers Data Controls and Temporary Chats; Copilot offers privacy controls in your Microsoft account. ChatGPT Free and Go also show ads in the US.

Winner: Copilot for organizations already on Microsoft 365; tie for individuals.

Feature comparison table

Pros and cons

Microsoft Copilot

• Pros: edits Word, Excel, PowerPoint and Outlook files in place, included with Microsoft 365 plans, strong enterprise security and compliance, access to both OpenAI and Anthropic models at work, Copilot Vision on Windows.

• Cons: frequent rebrands and feature removals, consumer Deep Research going away, best agents are business-first and usage-billed, AI features for the owner only on Family plans.

ChatGPT

• Pros: best standalone assistant, stronger writing and research, Work agent and Codex in a $20 plan, ChatGPT Images 2.0, mature memory and custom GPTs, works with any office suite.

• Cons: cannot edit Office files in place, no bundled storage or apps, ads on Free and Go in the US, frontier Astra in chat needs a $100+ Pro plan.

Who should pick which

Choose Microsoft Copilot if...

• You already pay for Microsoft 365 or would buy it for the Office apps and storage.

• Most of your work is in Word, Excel, PowerPoint, Outlook and Teams.

• Your company runs on Microsoft 365 and needs enterprise compliance.

• You want an assistant that can see your Windows screen and help with software.

Choose ChatGPT if...

• You want the most capable general assistant for writing, research and images.

• You use Google Workspace or a mix of tools rather than Microsoft 365.

• You want agent features and coding help today, at a flat $20.

• You rely on memory, projects or custom GPTs.

Use both if...

This is common and cheap: keep Copilot for in-file help in Office, and use ChatGPT Plus for drafting, research and images. For other options, our best ChatGPT alternatives guide covers Claude, Gemini and Perplexity, our ChatGPT vs Gemini comparison covers the Google side, and our best AI productivity tools roundup looks beyond chatbots.

FAQ

Is Copilot better than ChatGPT?

Copilot is better inside Microsoft 365, where it edits Word, Excel, PowerPoint and Outlook files directly and is included with your subscription. ChatGPT is better as a standalone assistant for writing, research, images, agents and coding. If you live in Office, Copilot wins on convenience; otherwise ChatGPT is the stronger product.

Does Microsoft Copilot use ChatGPT?

Not ChatGPT itself, but it uses OpenAI's models, including GPT-6 Sol and GPT-6.1 Sol in Microsoft 365 Copilot. Since September 2026 it also offers Anthropic's Claude Opus 5.5 and Sonnet 5.5, and Microsoft routes some requests to its own MAI models. Copilot is a separate product with its own features and policies.

Is Microsoft Copilot free?

Yes. The Copilot app on Windows, the web, iOS and Android is free with limited usage. Higher limits and Copilot inside Word, Excel, PowerPoint and Outlook require a Microsoft 365 plan, starting with Personal at $9.99 a month. Microsoft 365 Premium at $19.99 a month offers the most extensive consumer usage.

Is Microsoft 365 Premium worth it compared to ChatGPT Plus?

If you would pay for Microsoft 365 anyway, yes: Premium costs about the same as ChatGPT Plus and includes the Office apps, storage and extensive Copilot use. If you only want an AI assistant and do not need Office, ChatGPT Plus delivers more AI features for $20, including Codex and the Work agent.

What happened to Copilot Pro?

Microsoft stopped selling the standalone $20 Copilot Pro plan in late 2025 and moved its features into Microsoft 365 Premium, which costs $19.99 a month and includes the Office apps. Existing Copilot Pro subscribers kept access for a transition period. New buyers should compare Premium with ChatGPT Plus.

Which is better for Excel, Copilot or ChatGPT?

Copilot, if you want help inside the spreadsheet: it explains formulas, builds tables, charts and dashboards in your open workbook. ChatGPT is strong at analyzing an uploaded file and writing formulas or code, but it returns a new file rather than editing yours. Heavy analysts often use both.

Final verdict

Microsoft Copilot is the right choice when your work lives in Microsoft 365: it edits your documents in place, comes bundled with plans many people already pay for, and offers the strongest compliance story for companies on Microsoft. ChatGPT is the right choice when you want the best AI assistant regardless of office suite: it writes better, researches deeper, makes better images, and its $20 Plus plan includes agent and coding tools that Microsoft is still rolling out. Try Copilot free in the apps you already use, try ChatGPT free for a week, and pay for whichever changes how you work.

Compare more assistants in the AI productivity category and the AI chat category. If you build an AI tool we have missed, you can submit it for a listing.