NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16

NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16 has a checked-in NeMo AutoModel recipe for text generation. The Hugging Face configuration declares the NemotronHForCausalLM architecture.

Fine-Tune NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16

Follow the installation instructions, then review the checked-in recipe and its declared topology below before choosing a local or cluster launcher.

Use the Slurm launcher guide for the multi-node run.

Choose a Workflow

Goal	Start Here
Run the primary recipe for this model	Use the recipe configuration.
Try another checked-in recipe for this model	Use the alternate recipe.

Configuration

Setting	Configuration
Hardware	-
Strategy	FSDP2; tp_size=1, pp_size=4, cp_size=1, ep_size=64
Nodes	32
Features	Checkpointing (enabled=true), Activation checkpointing (activation_checkpointing=true), Packed sequences (packed_sequence_size=4096), Transformer Engine, HybridEP (dispatcher=hybridep)
Advanced	attention=te, linear=te, experts=gmm, dispatcher=hybridep

More Recipes for This Model

Model Reference

Model Architecture

Property	Value
Task	Text generation
Architecture	`NemotronHForCausalLM`

Available Models

nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16

LLM fine-tuning guide