Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Claude 4.1 Opus (Reasoning) | GPT-5.5 (Non-reasoning) |
|---|---|---|
| Input ($/M tokens) | $18.75 | $5 |
| Output ($/M tokens) | $75 | $30 |
Data from Artificial Analysis API — 12 benchmarks
GPT-5.5 (Non-reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $11.25/M tokens vs $32.81/M for Claude 4.1 Opus (Reasoning).
Claude 4.1 Opus (Reasoning) wins 7 out of 12 benchmarks compared to 4 for GPT-5.5 (Non-reasoning). See the detailed benchmark chart above for per-category results.
GPT-5.5 (Non-reasoning) generates tokens faster at 58 tok/s vs 37 tok/s. However, GPT-5.5 (Non-reasoning) has lower time-to-first-token (0.96s vs 8.29s).
Choose based on your priorities: GPT-5.5 (Non-reasoning) for lower cost, Claude 4.1 Opus (Reasoning) for stronger benchmark performance, and GPT-5.5 (Non-reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.