Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Claude 4 Sonnet (Reasoning) | Grok 4 |
|---|---|---|
| Input ($/M tokens) | $3 | $3 |
| Output ($/M tokens) | $15 | $15 |
Data from Artificial Analysis API — 12 benchmarks
Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.
Grok 4 wins 10 out of 12 benchmarks compared to 2 for Claude 4 Sonnet (Reasoning). See the detailed benchmark chart above for per-category results.
Grok 4 generates tokens faster at 48 tok/s vs 45 tok/s. However, Grok 4 has lower time-to-first-token (7.70s vs 8.27s).
Choose based on your priorities: both are similarly priced, Grok 4 for stronger benchmark performance, and Grok 4 for faster generation. For latency-sensitive apps, check the TTFT comparison above.