Claude Opus 4.5 vs Grok 4: pricing, specs & reviews compared
Side-by-side comparison of Claude Opus 4.5 (anthropic) and Grok 4 (xai) — pricing per million tokens, context length, licensing, benchmarks and community reviews on Reviuws.
| Spec | Claude Opus 4.5 | Grok 4 |
|---|---|---|
| Provider | anthropic | xai |
| License | closed | closed |
| Parameters | — | — |
| Context | 200k | 256k |
| Input price / M tok | $15 | $3 |
| Output price / M tok | $75 | $12 |
| Rating | 0.0 (0) | 0.0 (0) |