Claude Opus 5 vs xAI: Grok 4.5
Claude Opus 5 and xAI: Grok 4.5 are evenly matched; the right pick depends on your priorities.
| Metric | Claude Opus 5 | xAI: Grok 4.5 |
|---|---|---|
| Intelligence Index | 60.7✓ | 53.8 |
| Coding Index | 78.0✓ | 72.4 |
| GPQA Diamond | 93%✓ | 93% |
| Design Arena Elo | — | — |
| Speed (tokens/sec) | — | 37✓ |
| Latency | — | 1.0s✓ |
| Input price /M | $5.00 | $2.00✓ |
| Output price /M | $25.00 | $6.00✓ |
| Context window | 1M✓ | 500K |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVision |
Frequently asked
Is Claude Opus 5 better than xAI: Grok 4.5?
Claude Opus 5 and xAI: Grok 4.5 are evenly matched; the right pick depends on your priorities.
What are the biggest differences between Claude Opus 5 and xAI: Grok 4.5?
The table on this page compares Claude Opus 5 and xAI: Grok 4.5 metric by metric — intelligence benchmarks, coding score, speed, latency, context window and per-token price — with the winner marked on each row. Data refreshes hourly.