Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Claude 4.5 Haiku (Reasoning) | GPT-5.4 mini (xhigh) |
|---|---|---|
| Input ($/M tokens) | $1 | $0.75 |
| Output ($/M tokens) | $5 | $4.5 |
Data from Artificial Analysis API — 12 benchmarks
GPT-5.4 mini (xhigh) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.69/M tokens vs $2.00/M for Claude 4.5 Haiku (Reasoning).
GPT-5.4 mini (xhigh) wins 7 out of 12 benchmarks compared to 4 for Claude 4.5 Haiku (Reasoning). See the detailed benchmark chart above for per-category results.
GPT-5.4 mini (xhigh) generates tokens faster at 219 tok/s vs 139 tok/s. However, GPT-5.4 mini (xhigh) has lower time-to-first-token (3.82s vs 9.86s).
Choose based on your priorities: GPT-5.4 mini (xhigh) for lower cost, GPT-5.4 mini (xhigh) for stronger benchmark performance, and GPT-5.4 mini (xhigh) for faster generation. For latency-sensitive apps, check the TTFT comparison above.