Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Claude Opus 4.5 (Non-reasoning) | Grok 4 |
|---|---|---|
| Input ($/M tokens) | $5 | $5.5 |
| Output ($/M tokens) | $25 | $27.5 |
Data from Artificial Analysis API — 12 benchmarks
Claude Opus 4.5 (Non-reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $10.00/M tokens vs $11.00/M for Grok 4.
Grok 4 wins 7 out of 12 benchmarks compared to 4 for Claude Opus 4.5 (Non-reasoning). See the detailed benchmark chart above for per-category results.
Claude Opus 4.5 (Non-reasoning) generates tokens faster at 59 tok/s vs 0 tok/s. However, Grok 4 has lower time-to-first-token (0.00s vs 1.36s).
Choose based on your priorities: Claude Opus 4.5 (Non-reasoning) for lower cost, Grok 4 for stronger benchmark performance, and Claude Opus 4.5 (Non-reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.