NVIDIA: Nemotron 3 Ultra (free)

Description

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...

Availability

Pricing for this model is operator-dependent. Open the chat to route a request — the response includes the resolved per-token cost.

Modalities