Microsoft Copilot vs ChatGPT in 2026: Which One Should You Pay For?

Almost every Microsoft Copilot vs ChatGPT comparison you will find today is built on a plan that no longer exists. They line up Copilot Pro at $20 a month against ChatGPT Plus at $20 a month and declare it a fair fight. Microsoft stopped selling Copilot Pro in October 2025, and support for the last remaining subscribers ended on 1 August 2026. If a guide is still recommending it, that guide has not been checked in a year, and the price it quotes you cannot be paid.

So here is the comparison with current figures, taken from Microsoft's and OpenAI's own pages and checked on 24 August 2026. What each one actually costs now, which of the four different products called Copilot you are even comparing, what runs underneath each assistant, where your data goes, and what changed this year. The short version: these two are less alike in 2026 than they were in 2024, and the reason has almost nothing to do with which gives better answers.

The Key Takeaways

• There is no $20 versus $20 anymore: Copilot Pro is dead. Copilot inside the desktop Office apps now starts at $9.99 a month with Microsoft 365 Personal, against $20 for ChatGPT Plus.
• Copilot is not "just ChatGPT" underneath: Microsoft has onboarded both OpenAI and Anthropic as subprocessors and runs its own MAI models for voice. ChatGPT runs OpenAI models only.
• At work the sticker price lies: Copilot business licences are add-ons from $18 to $30 per user per month that need a Microsoft 365 plan underneath. ChatGPT Business at $25 is standalone.
• Copilot got smaller this month: Podcasts, Group Chat and Deep Research all left the consumer Copilot app on 18 August 2026.
• The real question is not which is smarter: it is whether you need an assistant that can read your own email and files, or one that is better at thinking from a blank page.

Microsoft Copilot vs ChatGPT: The Short Answer

The core difference is where each one lives. Microsoft Copilot works inside Word, Excel, Outlook and Teams, and at work it can read your organisation's own files and mail. ChatGPT is a standalone assistant that is stronger at open-ended reasoning, long-form writing and code. Copilot is bought as part of, or as an add-on to, a Microsoft 365 licence. ChatGPT is bought on its own.

First, Which Copilot Are We Comparing?

This is the step almost every comparison skips, and it is why so many of them talk past the reader. "Microsoft Copilot" is at least four different products, and only one of them is a fair match for ChatGPT.

The free Copilot app

The assistant at copilot.microsoft.com, in Windows and in Edge, free with any Microsoft account. This is the one most people mean, and the fairest match for ChatGPT's free tier.

Copilot inside the Office apps

Drafting in Word, formulas in Excel, decks in PowerPoint. This needs a paid Microsoft 365 consumer subscription, and it has no ChatGPT equivalent. ChatGPT does not live inside your documents.

Microsoft Copilot at work

The paid business licence that reads your organisation's mail, files and meetings. This is the one that competes with ChatGPT Business and Enterprise. It is also the only one where the comparison is close.

GitHub Copilot

A different product entirely, for writing code in an editor. If you searched for Copilot versus ChatGPT for coding, this is probably what you wanted, and it is not the assistant discussed here. Our companion guide sorts out which Microsoft Copilot you actually have in more detail.

The Comparison Everyone Is Still Getting Wrong

For about eighteen months, the honest answer to "Copilot or ChatGPT" was that they cost the same and you should pick on ecosystem. Copilot Pro was $20 a month, ChatGPT Plus was $20 a month, and the choice came down to whether you lived in Office.

That framing is finished. Microsoft's own support page states that Copilot Pro is no longer available for purchase, and that existing subscribers could keep it only until they cancelled or support ended on 1 August 2026. That date has passed. There is no consumer Copilot subscription at $20 to compare with ChatGPT Plus, and there has not been a way to buy one since October 2025.

What replaced it is not a like-for-like swap. Copilot in the desktop Office apps now comes bundled into ordinary Microsoft 365 consumer plans, starting at $9.99 a month, with Microsoft 365 Premium at $19.99 as the top tier. That is cheaper at the entry point than ChatGPT Plus, and it buys you something structurally different: an assistant in your spreadsheets rather than a better chatbot.

Microsoft Copilot vs ChatGPT on Price

Here is where the two line up in August 2026, with the figures taken from each company's own pricing pages.

Personal plans

Two things stand out. Microsoft 365 Family is the quiet bargain of the whole table: $12.99 a month covers up to six people, each with Copilot in the desktop apps, where ChatGPT charges per person. And ChatGPT has a ceiling Copilot simply does not offer. If you want maximum usage, the $100 and $200 Pro tiers have no Microsoft counterpart on the consumer side.

One billing quirk matters if you like paying yearly. OpenAI states that it does not support annual billing for Go, Plus or Pro. Microsoft 365 consumer plans all offer a yearly price, at $99.99, $129.99 and $199.99 respectively.

Business plans

At work, the sticker price is the least useful number on the page. Microsoft Copilot Business runs at $18 per user per month on an annual commitment, discounted from a $21 list price. The full Microsoft Copilot licence is $30 per user per month paid yearly, or $31.50 paid monthly. But Microsoft's own page is explicit that a separate licence for a qualifying Microsoft 365 plan is required. It is an add-on. ChatGPT Business, at $25 per user per month or $20 billed annually with a two-seat minimum, is not.

That gap is the single most misleading thing in this category. A $30 Copilot seat is never $30. Microsoft does sell two bundles that fold the base plan in: Business Standard with Copilot at $23.50, and Business Premium with Copilot at $32.00 per user per month. For most small businesses those are the sensible buy. We break down every Copilot tier and the real per-seat maths separately, including why the $18 promotional rate carries two different end dates depending on whether you buy direct or through a partner. For the ChatGPT side, our full guide to what each ChatGPT plan costs covers the same ground.

What Actually Runs Underneath

"Copilot is just ChatGPT with a Microsoft logo" was true once. In 2026 it is wrong, and the way it is wrong is worth knowing.

Copilot is multi-vendor now

Microsoft's documentation confirms that OpenAI was added to the Microsoft Online Services Subprocessors List on 23 June 2026, and became available for use on 9 July. It was then switched on by default for eligible commercial customers on 24 July, unless an administrator opted out. Separately, Microsoft has onboarded Anthropic as a subprocessor too, and Anthropic's models are available in Copilot experiences in Excel, PowerPoint and, since August 2026, Word. Where it is switched on you pick the provider yourself from a model selector rather than taking whatever the app hands you, but that choice rides on a commercial Microsoft 365 Copilot licence and an administrator has to enable Anthropic in the Microsoft 365 admin centre first. On top of both, Microsoft runs its own MAI models: MAI-Voice-1 behind Copilot's expressive audio, and MAI-Transcribe-1 behind its voice transcription and dictation. We covered that family in our piece on Microsoft's own MAI models.

Why that changes the answer

It means "does Copilot use ChatGPT" no longer has one answer. It depends on the app, the tenant and the task, and on the consumer side you might be talking to an OpenAI model in one window and a Microsoft one in another. ChatGPT, by contrast, is simple: it runs OpenAI's models and nothing else. If you specifically want a particular vendor's model every time, ChatGPT is the predictable one. If you want the system to pick, Copilot is doing more of that than people realise. Readers weighing up model choice more broadly may find our comparison of Claude against ChatGPT useful alongside this one.

Microsoft Copilot vs ChatGPT on Real Tasks

Capability comparisons between these two are mostly theatre, because on general question answering they are close enough that most people would not reliably tell them apart. The differences appear at the edges, where one has access the other does not.

The pattern is consistent. Copilot wins wherever the answer depends on something already sitting in your Microsoft account, and loses wherever the task starts from nothing. If most of your day is spent in Excel, that first column is worth more than any benchmark. If you have a look at what AI can actually do inside a spreadsheet, the gap becomes obvious quickly.

Where Your Data Goes

For business buyers this is usually the deciding factor, and it is more interesting than the usual "Copilot is more secure" line.

Both vendors offer enterprise data protection that keeps your prompts out of model training. The sharper difference is regional. Microsoft's documentation states that OpenAI-operated models are included in the EU Data Boundary. But when Anthropic's models are used in Copilot in Word, Excel or PowerPoint, data processing for those models happens outside the Microsoft EU Data Boundary. So the answer to "is Copilot safer for European data" depends on which model your tenant is set to use, and that is an administrator setting rather than a property of the product. Anyone with a compliance obligation should check it rather than assume.

The simpler point in Copilot's favour stands. At work, Copilot is already inside your tenant's permission model, so it only surfaces files a given user could already open. Pasting the same content into a consumer ChatGPT account routes it outside your organisation entirely. That is a governance difference, not a quality one, and it is usually what decides large deployments.

What Changed in 2026

Both products moved a lot this year, and in opposite directions. ChatGPT added tiers. Copilot removed features.

On the Copilot side, three things left the consumer app on 18 August 2026: Podcasts, Group Chat and Deep Research. Microsoft's support documentation confirms all three dates. The podcast retirement was the harshest, because there was no bulk export, so anything a user had generated and not downloaded episode by episode is gone, and previously shared links stopped working. Researcher, the more capable report-writing feature, does still exist in the paid consumer tiers and in the commercial Copilot licence. But Microsoft's own changes page does not describe it as a replacement for any of the three.

On the ChatGPT side, the movement was upward. The Pro plan split into two usage levels, at $100 and $200 a month. OpenAI has also announced Premium seats for ChatGPT Business at $100 per user per month billed annually, or $125 monthly. At the time of writing those are described as coming rather than available. The direction of travel is clear enough: ChatGPT is building room above Plus, while Copilot is consolidating around the Microsoft 365 subscription.

Can You Just Use Both?

Plenty of people do, and for a lot of readers it is the honest answer. Copilot handles the work that touches your own files and calendar, ChatGPT handles the thinking, the drafting and the code. The split is natural because it follows the access boundary rather than a preference.

The catch is that you are then paying two subscriptions for one habit. Microsoft 365 Personal at $9.99 plus ChatGPT Plus at $20 is about $30 a month, and it leaves you moving between two apps all day. If what you actually want is a good assistant on your desktop rather than an assistant welded to Office, a multi-model app is worth a look before you pay twice.

Fello AI is a native Mac, iPhone and iPad app that puts ChatGPT behind one subscription along with Claude, Gemini, Grok, DeepSeek, Perplexity, Kimi, GLM and Qwen. It starts at $9.99 a month, with a free tier to try first and a 4.7-star rating across 27,000+ reviews, and you switch models inside a single conversation rather than deciding once. It does not read your Outlook mail or your SharePoint files, which is the half of this comparison Copilot owns, so it answers the assistant question and not the Office one. Our roundup of multi-model alternatives on the Mac covers the options, and if you already have a Microsoft 365 licence, getting more out of the Copilot you are paying for might close the gap on its own.

So Which One Should You Choose?

If you already pay for Microsoft 365, you have Copilot in your Office apps whether you use it or not. Start there, and add ChatGPT only if you keep hitting a wall on open-ended work. If you do not use Office much, ChatGPT is the better standalone assistant and the choice is not close. If you are buying for a team that lives in Outlook and SharePoint, Copilot's access to your own data is worth more than any capability difference. Just budget from the total seat cost including the base licence, not the advertised add-on price.

What should not decide it is a $20 versus $20 comparison you may have read elsewhere. That match-up ended when Copilot Pro did.

FAQ