DeepSeek-V4-Flash-0731 vs Nemotron 3 Ultra (550B A55B): Specs & Benchmark Comparison
DeepSeek-V4-Flash-0731 is developed by DeepSeek, while Nemotron 3 Ultra (550B A55B) comes from NVIDIA. Nemotron 3 Ultra (550B A55B) was released in June 2026, and DeepSeek-V4-Flash-0731 followed a month later in July 2026. Nemotron 3 Ultra (550B A55B) is the larger model at roughly 550 billion parameters, against 304 billion for DeepSeek-V4-Flash-0731.
We have 9 benchmark results for DeepSeek-V4-Flash-0731 and 26 benchmark results for Nemotron 3 Ultra (550B A55B), but they overlap on a single test: Terminal-Bench 2.1, where DeepSeek-V4-Flash-0731 scores 83.0% against 56.4%.
DeepSeek-V4-Flash-0731 is available through an API at $0.14 per million input tokens with a 1M-token context window. We do not track a hosted API for Nemotron 3 Ultra (550B A55B), so pricing and context cannot be compared directly.
| Characteristic | DeepSeek-V4-Flash-0731 | Nemotron 3 Ultra (550B A55B) |
|---|---|---|
| Company | DeepSeek | NVIDIA |
| Release Date | July 31, 2026 | June 4, 2026 |
| Parameters | 304B | 550B |
| Multimodal | No | No |
| Context (input) | 1.0M | — |
| Context (output) | 393K | — |
| Input Price / 1M | $0.14 | — |
| Output Price / 1M | $0.28 | — |
| Average Score | 57.5% | 64.8% |
| Benchmarks | ||
| Terminal-Bench 2.1 | 83.0% | 56.4% |
Visual Benchmark Comparison
Verdict
DeepSeek-V4-Flash-0731 leads in 1 out of 2 comparison categories.
Both models show comparable average scores: DeepSeek-V4-Flash-0731 — 0.6, Nemotron 3 Ultra (550B A55B) — 0.6.
DeepSeek-V4-Flash-0731 is newer: released 7/31/2026 vs 6/4/2026.
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Frequently Asked Questions
Which is better for coding — DeepSeek-V4-Flash-0731 or Nemotron 3 Ultra (550B A55B)?
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The DeepSeek-V4-Flash-0731 and Nemotron 3 Ultra (550B A55B) comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the DeepSeek-V4-Flash-0731 or Nemotron 3 Ultra (550B A55B) page. See also the complete list of AI model comparisons.