Compare / head-to-head
NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4vsQwen3.5 397B-A17B
Qwen3.5 397B-A17B leads 2 of 3 shared benchmarks. NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 has the larger context window (1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 2
Qwen3.5 397B-A17B leads
Cheaper per token
—
list price, input + output
Larger context
NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4
1M tokens
Provider uptime (30d)
100% · —
NVIDIA · Qwen
NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4
NVIDIA · released 2026-06-04
text
- Context
- 1M
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 6 · 4 core
Qwen3.5 397B-A17B
Qwen · released 2026-02-15
textvision
Quality
Benchmark matrix
3 shared · 3 only NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 · 4 only Qwen3.5 397B-A17B| Benchmark | NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 | Qwen3.5 397B-A17B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| SWE-bench Verified | 69.7% ↗ | 76.4% ↗ | -6.7 pt | Qwen3.5 397B-A17B |
| GPQA Diamond | 87.9% ↗ | 88.4% ↗ | -0.5 pt | Qwen3.5 397B-A17B |
| LMArena Elo | 1444.7 ↗ | 1438.3 ↗ | +6.4 | NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 |
| Only NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 reports · 3 | ||||
| Humanity's Last Exam (no tools) | 26.1% ↗ | not reported | — | — |
| BrowseComp | 41.4% ↗ | not reported | — | — |
| Terminal-Bench 2.1 | 53.9% ↗ | not reported | — | — |
| Only Qwen3.5 397B-A17B reports · 4 | ||||
| MMLU-Pro | not reported | 87.8% ↗ | — | — |
| AIME 2026 | not reported | 94.2% ↗matharena ⚠ | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 29.5% ↗epoch | — | — |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | not reported | 88.9% ↗epoch | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 minus Qwen3.5 397B-A17B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 | Qwen3.5 397B-A17B | Edge |
|---|---|---|---|
| Context window | 1M tokens | 262K tokens | NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 |
| Max output | — | — | — |
| Input price / 1M | — | $0.172 ↗ | — |
| Output price / 1M | — | $1.03 ↗ | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $1.2 | — |
| Modalities | text | text · vision | Qwen3.5 397B-A17B |
| Released | 2026-06-04 | 2026-02-15 | — |
| Cited benchmark scores | 6 | 8 | — |
Reliability
Provider status
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Which one wins on your data?
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