Compare / head-to-head
GPT-5.4 ProvsNVIDIA Nemotron 3 Ultra 550B-A55B NVFP4
GPT-5.4 Pro leads 3 of 3 shared benchmarks. GPT-5.4 Pro has the larger context window (1.1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
3 – 0
GPT-5.4 Pro leads
Cheaper per token
—
list price, input + output
Larger context
GPT-5.4 Pro
1.1M tokens
Provider uptime (30d)
94.2446% · 100%
OpenAI · NVIDIA
GPT-5.4 Pro
OpenAI · released 2026-03-05
textvision
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
Quality
Benchmark matrix
3 shared · 9 only GPT-5.4 Pro · 3 only NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4| Benchmark | GPT-5.4 Pro | NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 94.4% ↗ | 87.9% ↗ | +6.5 pt | GPT-5.4 Pro |
| Humanity's Last Exam (no tools) | 42.7% ↗ | 26.1% ↗ | +16.6 pt | GPT-5.4 Pro |
| BrowseComp | 89.3% ↗ | 41.4% ↗ | +47.9 pt | GPT-5.4 Pro |
| Only GPT-5.4 Pro reports · 9 | ||||
| ARC-AGI-1 (Verified) | 94.5% ↗ | not reported | — | — |
| ARC-AGI-2 (Verified) | 83.3% ↗ | not reported | — | — |
| FrontierMath Tier 1-3 | 50% ↗ | not reported | — | — |
| FrontierMath Tier 4 | 38% ↗ | not reported | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | 58.5% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 82.5% ↗epoch | not reported | — | — |
| GDPval (wins or ties) | 82% ↗ | not reported | — | — |
| Humanity's Last Exam (with tools) | 58.7% ↗ | not reported | — | — |
| SimpleQA Verified | 46.3% ↗epoch | not reported | — | — |
| Only NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 reports · 3 | ||||
| SWE-bench Verified | not reported | 69.7% ↗ | — | — |
| LMArena Elo | not reported | 1444.7 ↗ | — | — |
| Terminal-Bench 2.1 | not reported | 53.9% ↗ | — | — |
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 GPT-5.4 Pro minus NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 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 | GPT-5.4 Pro | NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 | Edge |
|---|---|---|---|
| Context window | 1.1M tokens | 1M tokens | GPT-5.4 Pro |
| Max output | 128K tokens | — | — |
| Input price / 1M | $30 ↗ | — | — |
| Output price / 1M | $180 ↗ | — | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $210 | — | — |
| Modalities | text · vision | text | GPT-5.4 Pro |
| Released | 2026-03-05 | 2026-06-04 | — |
| Cited benchmark scores | 13 | 6 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
GPT-5.4 Pro vs …
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NVIDIA Nemotron 3 Ultra 550B-A55B NVFP4 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
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