Language

Llama 3.1 Nemotron Ultra 253B v1

By NVIDIA, in the Llama Nemotron family.

Released
7 Apr 2025
Status
Legacy
Context
131.1K
Max output
—
Input per 1M tokens
—
Output per 1M tokens
—
Open weights
Yes
License
nvidia-open-model-license
Parameters
253.4B
Knowledge cutoff
—
Reasoning
Yes
Modalities
text → text

Category scores

Out of 100, from independent and third-party results only, by method category-2026-09-29.1.

Category scores
CategoryScoreRankCoverage
Human preference42.5Not ranked1 of 5

Benchmark results

Every result we hold for this model, with who ran it and where it was published.

Human preference

Human preference results
BenchmarkMetricValueProvenanceSettingEvaluatedSource
Text Arena (arena.ai)Arena score (Elo scale)1348Independent—25 Sep 2026Arena
Text Arena (arena.ai)Votes2549Independent—25 Sep 2026Arena

Other Llama Nemotron versions

Sources