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...
With CoreAI, you can start chatting with NVIDIA: Nemotron 3 Ultra instantly — no separate subscription needed. CoreAI bundles access to NVIDIA: Nemotron 3 Ultra along with 300+ other AI models from NVIDIA and other providers like OpenAI, Anthropic, Google, Meta, and more.
Chat with NVIDIA: Nemotron 3 Ultra and 300+ other AI models — all in one app.