| Attribute | Amazon | Microsoft |
|---|---|---|
| AI footprint rank | #49 | #14 |
| Tracked products | 2 | 7 |
| Tracked models | 8 | 9 |
| Top ECI | 123.75 · Amazon Nova Pro | 130.43 · Phi 4 |
| Founded | 5 Jul 1994 | 4 Apr 1975 |
| Headquarters | Seattle | Redmond |
| Employees | 1,500,000 (2023) | 228,000 (2024) |
| Revenue (whole company) | $716.9B | $331.8B |
| Categories | Model APIs, Inference & hosting, AI chips & accelerators | General assistants, AI search, Workplace suites, Writing, Meetings & transcription, Presentations |