Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | GPT-5.4 mini (medium) | Claude 4.5 Haiku (Reasoning) |
|---|---|---|
| Input ($/M tokens) | $0.75 | $1 |
| Output ($/M tokens) | $4.5 | $5 |
Data from Artificial Analysis API — 12 benchmarks
GPT-5.4 mini (medium) 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 (medium) 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 (medium) generates tokens faster at 200 tok/s vs 139 tok/s. GPT-5.4 mini (medium) also has lower time-to-first-token (3.77s vs 9.86s).
Choose based on your priorities: GPT-5.4 mini (medium) for lower cost, GPT-5.4 mini (medium) for stronger benchmark performance, and GPT-5.4 mini (medium) for faster generation. For latency-sensitive apps, check the TTFT comparison above.