ChatGPT Business (OpenAI) vs Microsoft 365 Copilot
Side-by-side from the Top 11 rankings of ChatGPT vs Microsoft Copilot vs Zapier Agents: 11 Best AI Agents for Small Business 2026 and ChatGPT vs Google Gemini vs Canva: 11 Best AI Tools for Small Business 2026. Last verified September 12, 2026.
The short answer
ChatGPT Business (OpenAI) ranks higher on Top 11 (#1 vs #5) for Owners, founders and operations leads at United States companies under 500 people who have decided to buy an AI agent, have no engineer on staff, and want to know which one to pay for, what it costs at five or fifty people, and which of them is wrong for their business. / Owners, founders and operations leads at United States companies under 500 people who have decided to spend money on AI this quarter and want to know which tool, in what order, at what published price.. The shortest distance from a problem in plain English to an agent doing something about it. $20 a seat.
At a glance
| ChatGPT Business (OpenAI) | Microsoft 365 Copilot | |
|---|---|---|
| Top 11 rank | #1 / ChatGPT vs Microsoft Copilot vs Zapier Agents: 11 Best AI Agents for Small Business 2026 | #5 / ChatGPT vs Google Gemini vs Canva: 11 Best AI Tools for Small Business 2026 |
| Score (out of 9.4) | 8.6 | 8 |
| Best for | Small teams that want a working agent today and have nobody to build one | Businesses whose work lives in Outlook, Excel and Teams |
| Pricing | $$ (Standard seat $20 per user per month billed annually, $25 billed monthly; Premium seat $100 annually, $125 monthly; minimum two seats) | $$ (Copilot add on $18.00 per user per month paid yearly on promotional pricing against a regular price of $21.00, or $25.20 billed monthly, annual commitment required; Business Standard with Copilot $23.50 per user per month paid yearly, Business Premium with Copilot $32.00) |
| HQ | San Francisco, California | — |
| Founded | — | — |
ChatGPT Business (OpenAI)
The shortest distance from a problem in plain English to an agent doing something about it. $20 a seat.
openai.com/business/Microsoft 365 Copilot
Right for the business that is already Microsoft, expensive for anybody else. Compare the bundle against the add on.
www.microsoft.com/en-us/microsoft-365-copilot/businessSee full entry in ChatGPT vs Google Gemini vs Canva: 11 Best AI Tools for Small Business 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.