Llama 3.1 Nemotron Ultra 253B

NVIDIA
Llama 3.1 Nemotron Ultra 253B launch post cover
Context
128Ktokens
Released
1y ago
Size
253Bparameters

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Arena leaderboards and other sourced evaluations appear below; missing scores are not zero.

How it ranks

Against its predecessor, similarly priced models and the models ranked around it.

DeepSWE 1.1

Best pass@1 per model · Higher is better

Not evaluated in DeepSWE 1.1

Arena Text

Best Arena rating per model · Higher is better

Arena #227

  1. 1415
    GPT-4.1Similar release date
  2. 1402
    Qwen3 235B-A22BSimilar release date
  3. 1395
    DeepSeek V3 0324Similar release date
  4. 1352
    GLM 4.5VNearby rank
  5. 1352
    gpt-oss-120bNearby rank
  6. 1348
    Llama 3.1 Nemotron Ultra 253B
  7. 1347
    Qwen3 32BNearby rank
  8. 1346
  9. 1327
    Llama 4 MaverickSimilar release date

Ahead of 1 of 4 models released around the same time

Arena WebDev

Best Arena rating per model · Higher is better

Not ranked on Arena WebDev yet

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Agent Arena

Best IPS score per model · Higher is better

Not ranked on Agent Arena yet

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

All published scores

Arena ratings: Arena (lmarena-ai/leaderboard-dataset), licensed CC BY 4.0. Ratings come from pairwise human votes and are only comparable within one leaderboard; the interval is Arena's 95% confidence interval. Model names are matched to the Vertical Tabs catalog.

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