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Anthropic vs xAI
Pick 2-5 products, models, companies or categories. The table shows measurable differences with sources; highlighted cells mark the objectively highest or lowest value in a row, never an overall winner.
Companies (2)
| Attribute | Anthropic | xAI |
|---|---|---|
| AI footprint rank | #1 | #10 |
| Tracked products | 6 | 2 |
| Tracked models | 116 | 27 |
| Top ECI | 165 · Claude Fable 5.1 | 156.48 · Grok 4.6 |
| Founded | 26 Jan 2021 | — |
| Headquarters | San Francisco | — |
| Employees | 2,500 (2026) | — |
| Revenue (whole company) | Not disclosed | Not disclosed |
| Categories | General assistants, Coding, Research, Writing, Coding agents, Browser & computer-use agents | General assistants, AI search, Image generation, Model APIs |