NVIDIA: Nemotron 3 Ultra (free)
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...
Modalities
In / Out Price
$0 / $0 per 1M
Context
1M
Released
Jun 4, 2026
Knowledge Cutoff
—
Uptime
Share of successful requests per carrier, measured over the last 5 minutes, 30 minutes and day. When one carrier dips, the router fails over to the next.
Carriers
1
Best carrier, 30m
90.00%
Healthy now
0 / 1
| Provider | Status | Last 5m | Last 30m | Last day |
|---|---|---|---|---|
| Nvidia | Degraded | 100.00% | 90.00% | 46.11% |