Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Nemotron 3 Ultra 550B A55B (Reasoning) | Step 3.7 Flash |
|---|---|---|
| Input ($/M tokens) | $0.37 | $0.2 |
| Output ($/M tokens) | $1.08 | $1.15 |
Data from Artificial Analysis API — 12 benchmarks
Step 3.7 Flash is cheaper overall. Its blended price (3:1 input/output ratio) is $0.44/M tokens vs $0.55/M for Nemotron 3 Ultra 550B A55B (Reasoning).
Nemotron 3 Ultra 550B A55B (Reasoning) wins 6 out of 12 benchmarks compared to 1 for Step 3.7 Flash. See the detailed benchmark chart above for per-category results.
Step 3.7 Flash generates tokens faster at 398 tok/s vs 390 tok/s. Nemotron 3 Ultra 550B A55B (Reasoning) also has lower time-to-first-token (0.50s vs 0.73s).
Choose based on your priorities: Step 3.7 Flash for lower cost, Nemotron 3 Ultra 550B A55B (Reasoning) for stronger benchmark performance, and Step 3.7 Flash for faster generation. For latency-sensitive apps, check the TTFT comparison above.