AI Assistants
Rolling an assistant out to a company is a different purchase from buying one for yourself: you need admin controls, SSO, a training opt-out you can point at in a policy, and an audit trail. These three have the most complete enterprise story.
Best for Microsoft 365 organizations that work in Excel, Outlook and Teams all day
Microsoft Copilot is Microsoft's AI assistant, available as a standalone chat app and built into Word, Excel, PowerPoint, Outlook and Teams. It suits Microsoft 365 organizations and surfaces content a user already has permission to view.
Free plan
paid from $16.67/mo
Best for varied work that doesn't live inside one vendor's office apps
ChatGPT is OpenAI's AI assistant for people whose work spans writing, research, files, images and code. Its Work mode takes a task with a defined result and returns a document, spreadsheet, presentation or PDF to review.
Free plan
paid from $8/mo
Best for people whose mail, calendar and files already live in Google's apps
Gemini is Google's AI assistant for people whose email, calendar and files are already in Google's apps. It works with Gmail, Calendar and Drive inside a chat, and paid Google AI plans bundle it with Google One storage.
Free plan
paid from $4.99/mo
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AI Assistants by the numbers
$8/mo
Median starting price
33%
Offer a free trial
100%
Have a free plan
3
Products tracked
Computed from the published pricing of the 3 AI Assistants products in this list. Pricing last checked against vendor pages October 3, 2026.
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