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ChatGPT VS Microsoft 365 Copilot_

As of 4 November 2026, Microsoft 365 Copilot is named by 456 companies and ChatGPT by 6,096; ChatGPT skews to companies under 200 people (50% vs 19%), Microsoft 365 Copilot to companies over 1,000 (55% vs 23%).

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

The website-and-DNS footprint is not comparable between a marketing suite and a CRM: ChatGPT's script and mail records show on hundreds of thousands of small sites, Microsoft 365 Copilot rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.

ChatGPT: 2–200 employees
50%
Microsoft 365 Copilot: 2–200 employees
19%
ChatGPT: 1,000+ employees
23%
Microsoft 365 Copilot: 1,000+ employees
55%
Postings per company, 90 days
2.6 · 2.9
Website or DNS footprint
0 · 0
6,096companies name ChatGPT
456companies name Microsoft 365 Copilot
0name both
16,055 · 1,309postings in 90 days, ChatGPT · Microsoft 365 Copilot
02 — Side by side

Who chooses which

Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.

By company size
SegmentChatGPTshareMicrosoft 365 CopilotshareLeans
Self-employed2494%82%ChatGPT
2-10 employees65611%143%ChatGPT
11-50 employees1,07018%286%ChatGPT
51-200 employees1,34822%4410%ChatGPT
201-500 employees85814%5512%ChatGPT
501-1000 employees5209%5713%Microsoft 365 Copilot
1001-5000 employees76413%10924%Microsoft 365 Copilot
5001-10000 employees2013%4911%Microsoft 365 Copilot
10,001+ employees4307%9220%Microsoft 365 Copilot
By industry
SegmentChatGPTshareMicrosoft 365 CopilotshareLeans
Technology & software2,20236%8819%ChatGPT
Business & finance services1,67327%14732%Microsoft 365 Copilot
Manufacturing & industry5058%9320%Microsoft 365 Copilot
Consumer services & leisure3245%215%even
Media & content3125%123%ChatGPT
Commerce & trade2915%215%even
Property & construction1813%123%even
Public, community & associations1462%153%even
Health care1172%––outside top 12
Utilities & infrastructure1032%174%Microsoft 365 Copilot
Hospitality & travel992%82%even
Transport, logistics & rental731%61%even
Automotive––92%outside top 12
By country
SegmentChatGPTshareMicrosoft 365 CopilotshareLeans
United States3,39156%25355%even
Germany5779%399%even
United Kingdom3606%307%even
India1823%––outside top 12
Canada1522%235%Microsoft 365 Copilot
France1462%164%even
Netherlands1192%82%even
Brazil1152%––outside top 12
Australia751%102%even
Spain671%41%even
Singapore601%––outside top 12
Poland521%61%even
Denmark––102%outside top 12
Austria––41%outside top 12
Switzerland––41%outside top 12
Postings by team (share of each tool's postings)
SegmentChatGPTshareMicrosoft 365 CopilotshareLeans
Marketing & communications3,17316%171%ChatGPT
Software engineering2,19411%987%ChatGPT
Data & AI1,5408%24117%Microsoft 365 Copilot
Sales1,3167%816%even
Finance & accounting1,1626%352%ChatGPT
IT operations & business systems1,1226%36225%Microsoft 365 Copilot
Product, program & project management1,0285%947%even
Design & UX6103%40%ChatGPT
Legal, compliance & risk4842%50%ChatGPT
Business development & strategy4802%131%even
Administration & office4562%141%even
Customer service & success4272%111%even
Human resources3812%60%even
Education & training3662%50%even
General management & consulting3572%352%even
Engineering (non-software)3032%211%even
arts media and entertainment1611%10%even
Quality, safety & environment1251%40%even
logistics warehouse and transport1021%40%even
Unclassified980%81%even
skilled trades and field service830%––outside top 12
procurement and purchasing720%50%even
hospitality and food service610%20%even
research and science550%––outside top 12
construction and civil490%30%even
real estate and property490%––outside top 12
Travel, leisure & events410%––outside top 12
healthcare clinical210%––outside top 12
manufacturing and production210%––outside top 12
social care and community200%––outside top 12
Go deeper

The companies behind each column

Companies using ChatGPT →
Companies using Microsoft 365 Copilot →
ai assistants ranked →

Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

Microsoft 365 Copilot is named by 456 companies in job postings and ChatGPT by 6,096; 0 name both. (Breaknorm, 4 November 2026, https://breaknorm.co/compare/chatgpt-vs-microsoft-365-copilot)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
  • Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
  • SegmentsCountry, size and industry from the company profile built from its website.
  • Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
FAQ

ChatGPT vs Microsoft 365 Copilot: questions

Which is more used, ChatGPT or Microsoft 365 Copilot?

By companies naming it in their own job postings, ChatGPT (6,096) over Microsoft 365 Copilot (456). By website-and-DNS footprint, Microsoft 365 Copilot (0 vs 0), because its scripts and mail records sit on many small company sites.

Who chooses ChatGPT?

50% of ChatGPT companies have 2 to 200 employees, against 19% for Microsoft 365 Copilot. 23% of ChatGPT companies have over 1,000 employees, against 55% for Microsoft 365 Copilot.

Do companies run both?

0 companies name both in their postings, usually ChatGPT in marketing and Microsoft 365 Copilot in sales, or during a migration.

Where do these numbers come from?

From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.

Companies and people

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with the person who owns it

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