What is Nemotron 3 Ultra Nvfp4?
Tavory's live catalog lists Nemotron 3 Ultra Nvfp4 through Fireworks. The route is described 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.. This page summarizes the current catalog facts so you can compare context, capabilities and provider price signals before opening a workspace request. Availability, plan access and final cost are checked again when you send.