Language model

Llama 3.1 Nemotron Ultra 253B

NVIDIA

Profile

Specifications and access

Published information about this model. Existing estimates are explicitly labeled.

Specification	Value and source
Weights	Open weightsSource
Access	APISource
Parameters	253 billionSource
Context window	128,000 tokensSource
Maximum output	8,192 tokensSource
License	NVIDIA Open Model LicenseSource
Inputs	TextSource
Outputs	TextSource
Reasoning	YesSource
Tool calling	YesSource