Nemotron 3 Ultra (free)
by NVIDIA · nvidia/nemotron-3-ultra-550b-a55b:free
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...
- Input / 1M tokens
- Free
- Output / 1M tokens
- Free
- Context
- 1M
Specs
| Input price | Free |
|---|---|
| Output price | Free |
| Context window | 1M tokens |
| Max output | 65.5K tokens |
| Reads | text |
| Writes | text |
| Tool calling | Yes |
| Reasoning | Yes |
| Listed | Jun 4, 2026 |
List prices in USD, updated Oct 30, 2026. Providers may charge differently.
Providers
1 provider serves this model, as of Oct 30, 2026, 18:12 UTC.
| Provider | Context | Max output | Input / 1M | Output / 1M | Uptime (30 min) | Latency (median) | Throughput (median) | Supports | Status |
|---|---|---|---|---|---|---|---|---|---|
| Nvidia | 1M | 65.5K | Free | Free | 100% | 1.91 s | 30 tok/s | Normal |
"Cheapest" is the lowest input plus output price; "Fastest" the highest median throughput. Columns empty for every provider are not shown.
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