NVIDIAOpen Weights

Llama 3.1 Nemotron Ultra 253B

nvidia/llama-3.1-nemotron-ultra-253b-v1

Best Input Price

$0.00 / 1M

Flagship Nemotron model for high-throughput reasoning and complex agents

Context Window

128,000 tokens

Reasoning

Supported

Tool Calling

Supported

Released

2025-04-07

Inference Providers (1)

Provider	Model ID	Context	Input / 1M	Output / 1M	Action
Nvidia	nvidia/llama-3.1-nemotron-ultra-253b-v1	128,000	$0.00	$0.00	Docs ↗