Llama 3.1 Nemotron Ultra 253B
Flagship Nemotron model for high-throughput reasoning and complex agents
- Price per 1M tokens
- $0 / $0 input / output · NVIDIA
- Context window
- 128K tokens in · 8.2K out
BENCHMARKS
Not in the Epoch Capabilities Index. Epoch benchmarks what it can run, so this is a gap in coverage, not a poor result.
NVIDIA's past year
13 release days in the past year, about one every 28 days. The next is expected around Nov 19, 2026. Forecasts ↗
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Specifications
RELEASE DATEApr 7, 2025
WEIGHTSOpen weights
CONTEXT WINDOW128K
MAX OUTPUT8.2K
REASONINGNot listed
TOOL CALLINGNot listed
INPUTStext
OUTPUTStext
Specifications and prices from Models.dev; availability and limits may differ by provider. Benchmarks from Epoch AI (CC BY 4.0), LiveBench and the other sources named above.