ChatGPT vs. Microsoft Copilot

How buyers describe each platform across the eight things they say they compared. Each line summarizes what the interviews below establish; nothing here is a score.

	ChatGPT	Microsoft Copilot
Strongest contrast in these interviews	Commentary centres on the quality of its output for writing, brainstorming and analysis	Commentary centres on its place inside Microsoft 365 and within the company's existing Microsoft governance
Buyer pattern in these interviews	Includes marketing, ecommerce and analytics teams at companies of every size, on team or enterprise plans	Includes large enterprises standardized on Microsoft 365, among them banks, insurers, healthcare companies and manufacturers
Most-discussed job	Writing, brainstorming and research	Meeting notes, email and summaries across Microsoft 365
Also does	Data analysis, projects and custom GPTs, and connectors to other work tools	Help inside Excel and PowerPoint, and a choice of models from more than one provider
Praise in these interviews	Writing and brainstorming output some buyers preferred in direct comparisons	Working inside the applications employees already use all day
Complaints in these interviews	Company data policies that lead some IT teams to block or restrict it, and answers that need checking	Writing and research output that buyers describe as trailing other assistants
Relative cost	Not compared on price in these interviews. Copilot's cost complaints are about how it is licensed — fuller capabilities that cost extra beyond the baseline Copilot Chat, given only to some employees — while ChatGPT draws no price complaints, which does not establish that it costs less.
Operating pattern in these interviews	A team choosing its own assistant for writing, research and analysis	A Microsoft 365 company deploying an approved assistant, with capabilities set by licensing and configuration

What buyers say about each platform

Every buyer interview spends its minutes somewhere — praising the thing that won the deal, or flagging the thing that still stings. Map where those minutes go for ChatGPT and Microsoft Copilot, and the chart below shows where each assistant's praise and complaints concentrate in these interviews — not a ranking of what either can do:

ChatGPT what buyers talk about Microsoft Copilot

Output quality

Fit with work files & apps

Data security & approval

Meetings, email & summaries

Data analysis

Accuracy

Cost & licensing

Praise Complaints

ChatGPT is praised for its output; Copilot for where it sits. ChatGPT draws positive commentary for writing, brainstorming and analysis, while some users describe inaccurate answers or company restrictions on using it. Copilot buyers emphasize integration with Microsoft 365 and approval within their company's existing governance, and raise concerns about writing quality and some workflows. These are patterns in buyer commentary, not measurements of output quality, data security or overall performance; IT restrictions on ChatGPT reflect those companies' policies and configurations, not a finding that business ChatGPT deployments lack security controls.

Relative share of buyer commentary by theme in Alium's verified interviews, praise vs. complaint, through October 2026. Widths compare themes within this pair — they are relative, not counts. Each assistant's widths are normalized to its own commentary; an empty side means too few accounts raise the theme to chart.

In their own words

The phrases buyers reach for, verbatim, when they describe each platform:

Where ChatGPT buyers concentrate their praise

ChatGPT buyers praise its writing, brainstorming, research and data analysis, and the features that organize work and connect it to other systems; several who compared it directly with Copilot preferred its responses for marketing and analytical tasks. Their recurring concerns are answers that need checking, limits on carrying out tasks, and company restrictions on using company information: some companies block it, others approve it with enterprise controls or other guardrails, which is a difference in how it is governed rather than proof it is less secure. An educational-products retailer whose company standardized on Copilot still says “ChatGPT is still way better,” and a beauty brand's Amazon strategy director says “It's very good at rephrasing.” On data analysis, a travel media company's marketing director says “It does an excellent job of digesting massive amounts of data.” On the projects and connectors that keep their context together, a construction firm's marketing VP says of projects, “I feel like it helps me stay organized,” and an analyst at a large B2B distributor, whose company connected ChatGPT to its Microsoft files, finds that “ChatGPT seems way better at going through SharePoint and the connected Microsoft suite” — “which is counterintuitive because Copilot is in the exact same suite.” On approval, a home-improvement retailer sent staff “big, big warnings” about sharing confidential information, and at a payments company “ChatGPT is blocked on our computers.” Others say its answers need checking — a global manufacturer takes them “with a bit of a grain of salt” — and a healthcare company's CMO says “it lacks in the ability to do tasks.” Without a connection to company files, a large retailer's digital strategist notes, “it wouldn't have the context from my organization's details.”

Where Microsoft Copilot buyers concentrate their praise

Microsoft Copilot buyers praise its integration with Microsoft 365 apps and working with relevant company information, especially for meeting notes, email, document summaries and everyday productivity; companies standardized on Microsoft value the familiar workflows and established governance. Their recurring complaints are writing and research results some find weaker than other assistants, clunky iteration, Excel and PowerPoint features that fell short, and licensing restrictions. Experiences vary by task and deployment, and buyers do not establish that it is less capable across the board. A product marketing director at a B2B technology company says “it is in all the applications that we live in every single day,” and a direct-to-consumer beverage brand's marketing director says “What I love about Copilot is that it's more protected.” A financial-services firm explains the choice simply — “We have Microsoft 365 for all our employees, so it was the obvious skill to add to the mix” — and calls it “a very user-friendly tool” for staff who already know the Microsoft apps. A consumer-products manufacturer's commercial director puts the two halves together: it is “corporate approved within the firewall, so it's a secure system,” and connected to “all of your other Microsoft data, whether it's in Word, Excel, Teams, Outlook.” The jobs buyers describe are everyday ones: notes from Teams meetings, drafting and triaging email, summaries across their own files. After a week away, one data scientist says “Copilot is very good at marking which are the important ones.” On the output, a healthcare technology company's marketing strategy director says “I don't find its writing or editing ability to be very sophisticated. It does do a very good job of creating summaries.” Others find “iterating with Copilot is kind of clunky,” and a bank's insights leader says “it can't format well in Excel or PowerPoint.” An outdoor apparel brand's ecommerce manager says “I haven't been super impressed with it yet in terms of helping workflow and process across Outlook and Teams.”

The companies running both describe a decision still being made. A hospitality company's IT teams are “doing A-B tests between, say, something like Copilot and ChatGPT,” and an outdoor retailer that recently onboarded ChatGPT is weighing the reverse: “do we corporately move from chat to Copilot? And that's a big question that's still out there.” A small consumer-products brand was “demoing Copilot against ChatGPT in terms of copywriting abilities,” and its marketing director values Copilot for Office work because “it's so deeply integrated into the Office 365 apps that it's useful to not have to click over to another app, cut and paste it.” Where security decides, the answer is often Copilot alone — “we're not supposed to use any other systems outside of the Copilot,” says the educational-products retailer — though an insurer “started letting us use ChatGPT with guardrails.” Several of these companies also run a third assistant, most often Claude, and some buyers reach other providers' models from inside Copilot itself.

Is Microsoft Copilot included in Microsoft 365? Microsoft includes a baseline Copilot Chat with eligible Microsoft 365 business and enterprise subscriptions, while the fuller Microsoft 365 Copilot can require an additional licence, and buyers here describe paying extra for Copilot capabilities, assigning licences selectively and finding differences in what employees can reach. The interviews do not establish whether ChatGPT or Copilot is generally cheaper, because no buyer compares equivalent company deployments. Copilot's cost complaints are about how it is licensed: the small consumer-products brand “had to pay for Copilot to be added into 365 because not everyone at the company has access to Copilot,” and a national nonprofit's security leader says “Copilot, we thought that would be included in E5. It's not. That's also a la carte.” Other buyers describe licenses given only to people who use them, and one hits its usage limits quickly. ChatGPT draws no price complaints in these interviews, where companies describe paying for team or enterprise subscriptions; that absence does not establish that it costs less.

What buyers wish they'd known

Four questions the interviews raise

01

Is your company standardized on Microsoft 365?

ChatGPT

Bought as a separate team or enterprise plan, or used by teams on their own.

Microsoft Copilot

Buyers chose it because it was already in the suite they run.

02

What will your security team approve?

ChatGPT

Some companies here block or restrict it; others approve business or enterprise deployments with organizational controls.

Microsoft Copilot

Described as approved within existing Microsoft governance, though available features depend on licensing and configuration.

03

Is writing and research quality the test?

ChatGPT

Some buyers who ran the same prompts through both preferred its output for their tasks.

Microsoft Copilot

Users call its writing less sophisticated and its summaries strong.

04

Does the work live in Outlook, Teams and Office files?

ChatGPT

Reaches company files through connectors; one buyer found it searched SharePoint well.

Microsoft Copilot

Buyers praise its reach across their own email, meetings and files.

How the operating conditions differ

Recurring situations in the corpus, and where the evidence concentrates in each:

Pressures visible in these interviews

These interviews do not rank ChatGPT and Microsoft Copilot. Buyers often prefer ChatGPT for writing, brainstorming, research and analysis, including some who tested similar prompts in both; Copilot buyers value its integration with Microsoft 365 and access to workplace context, especially for meeting notes, email and summaries, though some find its writing and more demanding workflows disappointing. Both can be deployed at enterprise level, with capabilities and data controls depending on the plan and configuration.

The sharpest pressure is the gap between two decisions. IT chooses the approved assistant on data terms and on the suite the company already runs, and teams judge it on output. Where those disagree, buyers describe side-by-side tests, requests to AI governance committees, and second licenses for a few teams. Neither assistant is described as declining; several companies run both, often alongside a third assistant such as Claude.

Our recommendation, drawn from these accounts rather than a practice buyers describe, is to test both on your actual tasks, check their access to the business information those tasks need, run them through your security and governance requirements, and compare the cost of the licences your intended users would need; some organizations may find that separate assistants serve different teams better than one company-wide choice.

For the wider category, see what AI productivity tools are and how companies buy them; for AI in marketing work specifically, what buyers use AI content creation for; and for the other head-to-head, ChatGPT vs. Gemini.

Common questions