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Llama 3 1 Nemotron Ultra 253B v1 vs Nemotron 3 Nano 30B A3B

Llama 3 1 Nemotron Ultra 253B v1 (NVIDIA) and Nemotron 3 Nano 30B A3B (NVIDIA) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 6 November 2026

As of 6 November 2026, Llama 3 1 Nemotron Ultra 253B v1 holds the stronger ModelCap Index position (#172 vs #237).

Which should you choose?

Choose Llama 3 1 Nemotron Ultra 253B v1 if…

  • you want the stronger overall ModelCap Index position — #172 against #237 (38.9 vs 30.4 points).
  • Arena text is your yardstick — 1348 against 1314.
  • Arena coding is your yardstick — 1390 against 1361.

Choose Nemotron 3 Nano 30B A3B if…

  • you want provider choice — 1 listed API providers against 0.
  • you want the more recently listed model — Nemotron 3 Nano 30B A3B was listed 14 December 2025, Llama 3 1 Nemotron Ultra 253B v1 7 April 2025.

Llama 3 1 Nemotron Ultra 253B v1 vs Nemotron 3 Nano 30B A3B: specs, pricing and context

Specification comparison of Llama 3 1 Nemotron Ultra 253B v1 and Nemotron 3 Nano 30B A3B
FieldLlama 3 1 Nemotron Ultra 253B v1NVIDIANemotron 3 Nano 30B A3BNVIDIA
ModelCap Index position#172#237
Index score38.930.4
EvidenceMeasuredMeasured
Input price / 1M tokensUnlisted$0.06
Output price / 1M tokensUnlisted$0.24
Context window— tokens262K tokens
Declared route output cap-236K
API providers listed01
Weight accessRestricted licenseRestricted license
Input modalitiesTextText
First listed7 April 202514 December 2025
PublisherNVIDIANVIDIA

Evidence: 2 public benchmark observations across 2 boards · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Llama 3 1 Nemotron Ultra 253B v1 vs Nemotron 3 Nano 30B A3B

Public benchmark boards where Llama 3 1 Nemotron Ultra 253B v1 or Nemotron 3 Nano 30B A3B has a published result
BoardLlama 3 1 Nemotron Ultra 253B v1Nemotron 3 Nano 30B A3BLeads
Arena textArena (LMArena)13481336–1359Not reported13141308–1319Not reportedLlama 3 1 Nemotron Ultra 253B v1
Arena codingArena (LMArena)13901361–142013611351–1371BF16Llama 3 1 Nemotron Ultra 253B v1
BFCL V4UC Berkeley (Gorilla)10.0Function calling—Only one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Llama 3 1 Nemotron Ultra 253B v1 vs Nemotron 3 Nano 30B A3B: common questions

Is Llama 3 1 Nemotron Ultra 253B v1 better than Nemotron 3 Nano 30B A3B?

Llama 3 1 Nemotron Ultra 253B v1 ranks higher on the ModelCap Index as of 6 November 2026: #172 against #237. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.

Is Llama 3 1 Nemotron Ultra 253B v1 cheaper than Nemotron 3 Nano 30B A3B?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, Llama 3 1 Nemotron Ultra 253B v1 or Nemotron 3 Nano 30B A3B?

Llama 3 1 Nemotron Ultra 253B v1: context unknown. Nemotron 3 Nano 30B A3B: 262K-token context. OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified.

Which is better for coding, Llama 3 1 Nemotron Ultra 253B v1 or Nemotron 3 Nano 30B A3B?

Arena coding: Llama 3 1 Nemotron Ultra 253B v1 1390, Nemotron 3 Nano 30B A3B 1361 — Llama 3 1 Nemotron Ultra 253B v1 leads.

Are Llama 3 1 Nemotron Ultra 253B v1 and Nemotron 3 Nano 30B A3B open-weight models?

Llama 3 1 Nemotron Ultra 253B v1: Restricted license. Nemotron 3 Nano 30B A3B: Restricted license. Open weights mean the checkpoint can be downloaded and self-hosted under its licence. A missing weight link does not identify every API or chat product that offers a model.

Where can I run Llama 3 1 Nemotron Ultra 253B v1 and Nemotron 3 Nano 30B A3B?

ModelCap currently lists 0 API providers for Llama 3 1 Nemotron Ultra 253B v1 and 1 for Nemotron 3 Nano 30B A3B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Llama 3 1 Nemotron Ultra 253B v1 vs Nemotron 3 Nano 30B A3B comparison?

Every figure and ModelCap Index position comes from the same published snapshot dated 6 November 2026. Publication and page updates happen separately; use the snapshot date shown on the page.

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