Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | GPT-5.4 (xhigh) | GPT-5.2 (xhigh) |
|---|---|---|
| Input ($/M tokens) | $2.5 | $1.75 |
| Output ($/M tokens) | $15 | $14 |
Data from Artificial Analysis API — 12 benchmarks
GPT-5.2 (xhigh) is cheaper overall. Its blended price (3:1 input/output ratio) is $4.81/M tokens vs $5.63/M for GPT-5.4 (xhigh).
GPT-5.4 (xhigh) wins 6 out of 12 benchmarks compared to 5 for GPT-5.2 (xhigh). See the detailed benchmark chart above for per-category results.
GPT-5.4 (xhigh) generates tokens faster at 84 tok/s vs 66 tok/s. However, GPT-5.2 (xhigh) has lower time-to-first-token (74.69s vs 147.97s).
Choose based on your priorities: GPT-5.2 (xhigh) for lower cost, GPT-5.4 (xhigh) for stronger benchmark performance, and GPT-5.4 (xhigh) for faster generation. For latency-sensitive apps, check the TTFT comparison above.