Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Claude 4 Opus (Reasoning) | o1-preview |
|---|---|---|
| Input ($/M tokens) | $15 | $16.5 |
| Output ($/M tokens) | $75 | $66 |
Data from Artificial Analysis API — 12 benchmarks
o1-preview is cheaper overall. Its blended price (3:1 input/output ratio) is $28.88/M tokens vs $30.00/M for Claude 4 Opus (Reasoning).
Claude 4 Opus (Reasoning) wins 11 out of 12 benchmarks compared to 1 for o1-preview. See the detailed benchmark chart above for per-category results.
Both models have comparable generation speeds.
Choose based on your priorities: o1-preview for lower cost, Claude 4 Opus (Reasoning) for stronger benchmark performance, and both have comparable speed. For latency-sensitive apps, check the TTFT comparison above.