Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Grok 4 | Claude Opus 4.5 (Non-reasoning) |
|---|---|---|
| Input ($/M tokens) | $4.25 | $6.25 |
| Output ($/M tokens) | $21.25 | $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 52 tok/s vs 44 tok/s. However, Claude Opus 4.5 (Non-reasoning) has lower time-to-first-token (1.44s vs 17.09s).
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.