Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Claude Opus 4.5 (Non-reasoning) | Grok 4 |
|---|---|---|
| Input ($/M tokens) | $6.25 | $4.25 |
| Output ($/M tokens) | $25 | $21.25 |
Data from Artificial Analysis API — 12 benchmarks
Grok 4 is cheaper overall. Its blended price (3:1 input/output ratio) is $8.50/M tokens vs $10.94/M for Claude Opus 4.5 (Non-reasoning).
Grok 4 wins 7 out of 12 benchmarks compared to 5 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 51 tok/s vs 41 tok/s. Claude Opus 4.5 (Non-reasoning) also has lower time-to-first-token (1.49s vs 36.34s).
Choose based on your priorities: Grok 4 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.