Claude 4.7 Opus vs Grok 4
Direct spec comparison of Claude 4.7 Opus (from Anthropic) and Grok 4 (from xAI). Want a 3- or 4-way comparison? Open the multi-model tool →
 Claude 4.7 OpusAnthropic |  Grok 4xAI | |
|---|---|---|
| Vendor | Anthropic | xAI |
| Family | Claude | Grok |
| Release date | 2026-04-16 | 2025-07-09 |
| Context window | 1,000,000 tokens | 256,000 tokens |
| Parameters | — | — |
| Modality | text, vision | text |
| License | proprietary | proprietary |
| Source | proprietary | proprietary |
| Description | Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle). Optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6. | — |
| Links | ||
| Benchmarks | ||
| MMLU-Pro | 88.2% | 82.8% |
| GPQA-D | 90.1% | 87.5% |
| HumanEval | 97.4% | — |
| Aider | 91.2% | 72.5% |
| AIME-25 | 93.5% | 86.1% |
| LiveCB | 80.2% | 65.3% |
| MMMU | 79.0% | — |
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