Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | GPT-5.4 (xhigh) | Gemini 3 Pro Preview (high) |
|---|---|---|
| Input ($/M tokens) | $2.5 | $2 |
| Output ($/M tokens) | $15 | $12 |
Data from Artificial Analysis API — 12 benchmarks
Gemini 3 Pro Preview (high) is cheaper overall. Its blended price (3:1 input/output ratio) is $4.50/M tokens vs $5.63/M for GPT-5.4 (xhigh).
GPT-5.4 (xhigh) wins 7 out of 12 benchmarks compared to 4 for Gemini 3 Pro Preview (high). See the detailed benchmark chart above for per-category results.
Gemini 3 Pro Preview (high) generates tokens faster at 117 tok/s vs 84 tok/s. However, Gemini 3 Pro Preview (high) has lower time-to-first-token (39.61s vs 147.97s).
Choose based on your priorities: Gemini 3 Pro Preview (high) for lower cost, GPT-5.4 (xhigh) for stronger benchmark performance, and Gemini 3 Pro Preview (high) for faster generation. For latency-sensitive apps, check the TTFT comparison above.