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Head-to-head comparison

Llama 3 1 Nemotron 51B Instruct vs Nemotron 3 Nano 30B A3B

Llama 3 1 Nemotron 51B Instruct (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, Nemotron 3 Nano 30B A3B holds the stronger ModelCap Index position (#237 vs #266).

Which should you choose?

Choose Llama 3 1 Nemotron 51B Instruct if…

  • ModelCap publishes no field on which Llama 3 1 Nemotron 51B Instruct leads Nemotron 3 Nano 30B A3B for this pair.

Choose Nemotron 3 Nano 30B A3B if…

  • you want the stronger overall ModelCap Index position — #237 against #266 (30.4 vs 23.8 points).
  • you want provider choice — 1 listed API providers against 0.
  • Arena text is your yardstick — 1314 against 1287.
  • Arena coding is your yardstick — 1361 against 1312.
  • you want the more recently listed model — Nemotron 3 Nano 30B A3B was listed 14 December 2025, Llama 3 1 Nemotron 51B Instruct 22 September 2024.

Llama 3 1 Nemotron 51B Instruct vs Nemotron 3 Nano 30B A3B: specs, pricing and context

Specification comparison of Llama 3 1 Nemotron 51B Instruct and Nemotron 3 Nano 30B A3B
FieldLlama 3 1 Nemotron 51B InstructNVIDIANemotron 3 Nano 30B A3BNVIDIA
ModelCap Index position#266#237
Index score23.830.4
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 listed22 September 202414 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 51B Instruct vs Nemotron 3 Nano 30B A3B

Public benchmark boards where Llama 3 1 Nemotron 51B Instruct or Nemotron 3 Nano 30B A3B has a published result
BoardLlama 3 1 Nemotron 51B InstructNemotron 3 Nano 30B A3BLeads
Arena textArena (LMArena)12871277–1297Not reported13141308–1319Not reportedNemotron 3 Nano 30B A3B
Arena codingArena (LMArena)13121290–133413611351–1371BF16Nemotron 3 Nano 30B A3B

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 51B Instruct vs Nemotron 3 Nano 30B A3B: common questions

Is Llama 3 1 Nemotron 51B Instruct better than Nemotron 3 Nano 30B A3B?

Nemotron 3 Nano 30B A3B ranks higher on the ModelCap Index as of 6 November 2026: #237 against #266. 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 51B Instruct 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 51B Instruct or Nemotron 3 Nano 30B A3B?

Llama 3 1 Nemotron 51B Instruct: 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 51B Instruct or Nemotron 3 Nano 30B A3B?

Arena coding: Llama 3 1 Nemotron 51B Instruct 1312, Nemotron 3 Nano 30B A3B 1361 — Nemotron 3 Nano 30B A3B leads.

Are Llama 3 1 Nemotron 51B Instruct and Nemotron 3 Nano 30B A3B open-weight models?

Llama 3 1 Nemotron 51B Instruct: 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 51B Instruct and Nemotron 3 Nano 30B A3B?

ModelCap currently lists 0 API providers for Llama 3 1 Nemotron 51B Instruct 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 51B Instruct 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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