Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Nemotron 3 Ultra 550B A55B (Reasoning) | DeepSeek V3.1 Terminus (Reasoning) |
|---|---|---|
| Input ($/M tokens) | $0.675 | $1.635 |
| Output ($/M tokens) | $2.675 | $2.75 |
Data from Artificial Analysis API — 12 benchmarks
Nemotron 3 Ultra 550B A55B (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.18/M tokens vs $1.91/M for DeepSeek V3.1 Terminus (Reasoning).
Nemotron 3 Ultra 550B A55B (Reasoning) wins 6 out of 12 benchmarks compared to 5 for DeepSeek V3.1 Terminus (Reasoning). See the detailed benchmark chart above for per-category results.
Nemotron 3 Ultra 550B A55B (Reasoning) generates tokens faster at 179 tok/s vs 0 tok/s. However, DeepSeek V3.1 Terminus (Reasoning) has lower time-to-first-token (0.00s vs 0.92s).
Choose based on your priorities: Nemotron 3 Ultra 550B A55B (Reasoning) for lower cost, Nemotron 3 Ultra 550B A55B (Reasoning) for stronger benchmark performance, and Nemotron 3 Ultra 550B A55B (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.