Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | GPT-5.4 mini (medium) | DeepSeek R1 0528 (May '25) |
|---|---|---|
| Input ($/M tokens) | $0.75 | $1.35 |
| Output ($/M tokens) | $4.5 | $4.2 |
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 $2.06/M for DeepSeek R1 0528 (May '25).
GPT-5.4 mini (medium) wins 7 out of 12 benchmarks compared to 5 for DeepSeek R1 0528 (May '25). See the detailed benchmark chart above for per-category results.
GPT-5.4 mini (medium) generates tokens faster at 172 tok/s vs 0 tok/s. However, DeepSeek R1 0528 (May '25) has lower time-to-first-token (0.00s vs 3.42s).
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.