AI assistant built into Microsoft 365
Free AI chat with live web search in the browser, and paid tiers that embed AI across the entire Microsoft 365 suite — Outlook, Word, Excel, Teams, and PowerPoint. The natural choice for organisations already on Microsoft licensing who want AI capabilities without adding a new vendor relationship to manage.
Pricing plans
| Rating | 4.1 | 4.7 | 4.5 | 4.5 |
| Reviews | — | 5,180 | 252 | 122 |
| Price | Free / $30/user/mo (M365) | Free / $20/mo Plus | Free / $20/mo Pro | Free / $20/mo Pro |
| Free tier | Free | Free | Free | Free |
| API access | ✓ | ✓ | ✗ | ✓ |
| Watermark | No | No | No | No |
The tool that made AI assistants mainstream — and still the most broadly capable for everyday use. Best-in-class for general knowledge, coding, content drafting, data analysis, and image generation via DALL·E 3. Four years of model improvement and a vast plugin and GPT ecosystem give it a feature lead that's hard to catch up to.
Search with AI that actually cites its sources. Every answer comes with numbered references you can click through — no more wondering where the statistic came from or whether it was invented. Best for research, fact-checking, and staying current on fast-moving topics where accuracy matters more than creative flair.
Anthropic's AI assistant — the one most often cited by professionals who care about depth. Exceptional at long-document analysis, nuanced conversation, research synthesis, and tasks requiring genuine reasoning rather than pattern-matched confidence. Widely used by writers, analysts, lawyers, and engineers who need an assistant that's careful, not just fast.