What is Nemotron 3 Ultra Nvfp4?
Tavory's live catalog currently lists Nemotron 3 Ultra Nvfp4 from Fireworks. The catalog describes it as nemotron-3-ultra-550b-a55b-nvfp4 is a frontier-scale large language model (llm) trained by nvidia, designed to deliver strong agentic, reasoning, and conversational capabilities. it is optimized for the most demanding workloads, including complex multi-step agents, long-context analysis, and high-accuracy reasoning over code, math, and science. the model employs a hybrid latent mixture-of-experts (latentmoe) architecture, utilizing interleaved mamba-2 and moe layers, along with select attention layers. like the super model, the ultra model incorporates multi-token prediction (mtp) layers for faster text generation and improved quality, and it is trained using an nvfp4 pre-training recipe to maximize compute efficiency. the model has 55b active parameters and 550b parameters in total.. Availability, plan access and provider pricing can change and are checked again when a request is sent.