Nemotron 3 Ultra 550B A55B
nvidia/nemotron-3-ultra-550b-a55bLargest Nemotron 3 model for maximum open-weight reasoning and agent accuracy
Input modalitiesT
Output modalitiesT
Source-linkednemotronOpen weightsReleased 2026-06-04
Context window1M
Maximum output128K
Provider offers8
Knowledge cutoffUndisclosed
CapabilitiesWhat this model supports
- Creator
- NVIDIA
- Family
- nemotron
- Modalities
- Text
- License
- Not documented
- Release date
- 2026-06-04
- Model ID
nvidia/nemotron-3-ultra-550b-a55b
Providers offering Nemotron 3 Ultra 550B A55B| Provider | Provider model ID | Context | Input / 1M | Output / 1M | Cached / 1M | Features | All pricing |
|---|
UnoRouter | nemotron-3-ultra-550b-a55b:free | 1M | $0 | $0 | — | R T · | View{
"input": 0,
"output": 0
} |
routing.run | nemotron-3-ultra | 131.072K | $0.1 | $0.1 | — | R T · | View{
"input": 0.1,
"output": 0.1
} |
Nvidia | nvidia/nemotron-3-ultra-550b-a55b | 1M | $0.5 | $2.5 | $0.15 | R T S | View{
"cache_read": 0.15,
"input": 0.5,
"output": 2.5
} |
Pioneer | nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 | 1M | $0.5 | $2.5 | $0.15 | R T · | View{
"cache_read": 0.15,
"cache_write": 0.5,
"input": 0.5,
"output": 2.5
} |
LLM Gateway | nemotron-3-ultra-550b | 262.144K | $0.5 | $2.5 | $0.15 | R T · | View{
"cache_read": 0.15,
"input": 0.5,
"output": 2.5
} |
OpenRouter | nvidia/nemotron-3-ultra-550b-a55b | 1M | $0.5 | $2.2 | $0.1 | R T S | View{
"cache_read": 0.1,
"input": 0.5,
"output": 2.2
} |
Together AI | nvidia/nemotron-3-ultra-550b-a55b | 512.3K | $0.6 | $3.6 | $0.2 | R T S | View{
"cache_read": 0.2,
"input": 0.6,
"output": 3.6
} |
Vercel AI Gateway | nvidia/nemotron-3-ultra-550b-a55b | 1M | $0.6 | $2.4 | $0.12 | R T · | View{
"cache_read": 0.12,
"input": 0.6,
"output": 2.4
} |
EvidencePublished benchmark results
Anthropic: Claude Opus 4.8
47.2
Nemotron 3 Ultra 550B A55B
27.4
Nemotron 3 Ultra 550B A55B
44.4
Anthropic: Claude Opus 4.8
74.3
Anthropic: Claude Opus 4.7
73.6
Nemotron 3 Ultra 550B A55B
49.3
Anthropic: Claude Opus 4.6
1349.0
Nemotron 3 Ultra 550B A55B
1209.0
Anthropic: Claude Opus 4.7
1324.0
Gemini 3.1 Pro Preview
1313.0
Anthropic: Claude Opus 4.8
1308.0
Anthropic: Claude Opus 4.6
1303.0
Nemotron 3 Ultra 550B A55B
1118.0
Anthropic: Claude Opus 4.6
1336.0
Anthropic: Claude Opus 4.7
1330.0
Nemotron 3 Ultra 550B A55B
1164.0
Anthropic: Claude Opus 4.6
1322.0
Anthropic: Claude Opus 4.7
1322.0
Anthropic: Claude Sonnet 4.6
1316.0
Nemotron 3 Ultra 550B A55B
1151.0
Anthropic: Claude Opus 4.6
1339.0
Anthropic: Claude Opus 4.7
1336.0
Nemotron 3 Ultra 550B A55B
1191.0
Gemini 3.1 Pro Preview
1340.0
Anthropic: Claude Opus 4.6
1278.0
Anthropic: Claude Opus 4.7
1274.0
Nemotron 3 Ultra 550B A55B
1128.0
Anthropic: Claude Opus 4.7
1359.0
Anthropic: Claude Opus 4.6
1343.0
Anthropic: Claude Sonnet 4.6
1320.0
Nemotron 3 Ultra 550B A55B
1167.0
Anthropic: Claude Opus 4.6
1331.0
Anthropic: Claude Opus 4.7
1329.0
Anthropic: Claude Sonnet 4.6
1320.0
Nemotron 3 Ultra 550B A55B
1133.0
Nemotron 3 Ultra 550B A55B
46.7
Nemotron 3 Ultra 550B A55B
87.0
Nemotron 3 Ultra 550B A55B
37.4
Nemotron 3 Ultra 550B A55B
81.7
Anthropic: Claude Opus 4.8
55.7
Anthropic: Claude Opus 4.7
53.5
Nemotron 3 Ultra 550B A55B
37.8
Nemotron 3 Ultra 550B A55B
89.0
Nemotron 3 Ultra 550B A55B
86.8
Nemotron 3 Ultra 550B A55B
67.7
Nemotron 3 Ultra 550B A55B
70.7
Nemotron 3 Ultra 550B A55B
56.4