Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Claude 4.5 Sonnet (Reasoning) | Grok 3 |
|---|---|---|
| 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.
Claude 4.5 Sonnet (Reasoning) wins 11 out of 12 benchmarks compared to 1 for Grok 3. See the detailed benchmark chart above for per-category results.
Grok 3 generates tokens faster at 70 tok/s vs 58 tok/s. However, Grok 3 has lower time-to-first-token (0.33s vs 7.49s).
Choose based on your priorities: both are similarly priced, Claude 4.5 Sonnet (Reasoning) for stronger benchmark performance, and Grok 3 for faster generation. For latency-sensitive apps, check the TTFT comparison above.