NVIDIA·#172 of 352 on the current board
Llama 3 1 Nemotron Ultra 253B v1 is a language model from NVIDIA. It ranks #172 of 352 on ModelCap's current board, with an Index score of 38.9, measured on 2 public benchmarks. Its score range of 32.3–45.5 spans positions #145–#225. Its weights are downloadable under a use-restricted licence.
Figures as of 6 Nov 2026, 20:49 UTC · download the public dataset · methodology
OpenRouter endpoint status could not be refreshed. This model is not treated as currently served until a successful observation arrives.
Current provider status is unavailable.
BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.
These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.
The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.
Not yet published: the base model it derives from, a current serving provider, measured provider uptime, published provider pricing, declared context and output limits, pinned evaluation dataset versions.
A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.
Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.
OpenRouter weekly popularity across the full model catalogue.
Independent providers versus the model's open or closed cohort, weighted by uptime.
Hugging Face 30-day downloads for open models; neutral for closed models.
Time since first public availability, on a six-month half-life.
nvidia/Llama-3_1-Nemotron-Ultra-253B-v1OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. OpenRouter metadata
Restricted license. Downloadable weights use a model-specific or use-restricted license. Review the linked license before use, redistribution, or commercial deployment.
Models within 3 places of #172 on the ModelCap Index.
The same publisher's other current models with a public Index position.
Llama 3 1 Nemotron Ultra 253B v1 holds ModelCap Index position #172 of 352 ranked language models as of 6 November 2026, with an Index score of 38.9 (interval 32.3–45.5); evidence: measured. The Index combines public benchmark boards with published uncertainty; the methodology page explains the weighting.
No live API price is listed for Llama 3 1 Nemotron Ultra 253B v1 in the current snapshot as of 6 November 2026 because the latest endpoint refresh was unavailable. ModelCap shows a price only when a provider currently lists one.
Restricted license (nvidia-open-model-license). Downloadable weights use a model-specific or use-restricted license. Review the linked license before use, redistribution, or commercial deployment. The repository is nvidia/Llama-3_1-Nemotron-Ultra-253B-v1 on Hugging Face.
Llama 3 1 Nemotron Ultra 253B v1 has published results on 3 public boards tracked by ModelCap as of 6 November 2026: Arena text 1348 (#225 of 419), Arena coding 1390 (#224 of 414) and BFCL V4 10.0 (#82 of 83). Each board page ranks every tracked model on that benchmark. The ModelCap Index scores the results its methodology admits, with published uncertainty, and shows reference boards without scoring them.
Llama 3 1 Nemotron Ultra 253B v1 ranks #172 (Index 38.9) and Llama 3 3 Nemotron Super 49B v1 5 ranks #171 (Index 38.9) on the ModelCap Index as of 6 November 2026. The head-to-head page lines up their benchmarks, listed prices, context windows and provider counts side by side.
Llama 3 1 Nemotron Ultra 253B v1 first appeared in the catalogue on 7 Apr 2025. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.