Nemotron 3 Ultra 550B A55B
nemotron
Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy
ReasoningTool CallingOpen Weights
Context Window
1M
Max Output
128K
Temperature
Yes
Open Weights
Yes
Knowledge Cutoff
N/A
Released
2026-06-04
Last Updated
2026-06-04
Modalities
Input:Text
→Output:Text
Available Providers (4)
| Provider | Input /1M | Output /1M | Cache Read /1M | Cache Write /1M | Reasoning | Status |
|---|---|---|---|---|---|---|
 Vercel AI Gateway | Rp 10.738 | Rp 42.952 | Rp 2.148 | — | toggle | — |
| Nvidia | Rp 8.949 | Rp 44.741 | Rp 2.685 | — | toggle | — |
 Together AI | Rp 10.738 | Rp 64.427 | Rp 3.580 | — | toggle | — |
 OpenRouter | Rp 8.949 | Rp 39.372 | Rp 1.790 | — | effort, budget_tokens | — |