Skip to content
ModelCap

Head-to-head comparison

Llama 3 1 Nemotron 51B Instruct vs Llama 3 3 Nemotron Super 49B v1 5

Llama 3 1 Nemotron 51B Instruct (NVIDIA) and Llama 3 3 Nemotron Super 49B v1 5 (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 21 October 2026

As of 21 October 2026, Llama 3 3 Nemotron Super 49B v1 5 holds the stronger ModelCap Index position (#165 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 Llama 3 3 Nemotron Super 49B v1 5 for this pair.

Choose Llama 3 3 Nemotron Super 49B v1 5 if…

  • you want the stronger overall ModelCap Index position — #165 against #266 (39.3 vs 24.4 points).
  • Arena text is your yardstick — 1343 against 1287.
  • Arena coding is your yardstick — 1403 against 1312.
  • you want the more recently listed model — Llama 3 3 Nemotron Super 49B v1 5 was listed 25 July 2025, Llama 3 1 Nemotron 51B Instruct 22 September 2024.

Llama 3 1 Nemotron 51B Instruct vs Llama 3 3 Nemotron Super 49B v1 5: specs, pricing and context

Specification comparison of Llama 3 1 Nemotron 51B Instruct and Llama 3 3 Nemotron Super 49B v1 5
FieldLlama 3 1 Nemotron 51B InstructNVIDIALlama 3 3 Nemotron Super 49B v1 5NVIDIA
ModelCap Index position#266#165
Index score24.439.3
EvidenceMeasuredMeasured
Input price / 1M tokensUnlistedUnlisted
Output price / 1M tokensUnlistedUnlisted
Context window— tokens— tokens
Declared route output cap--
API providers listed00
Weight accessRestricted licenseRestricted license
Input modalitiesTextText
First listed22 September 202425 July 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 Llama 3 3 Nemotron Super 49B v1 5

Public benchmark boards where Llama 3 1 Nemotron 51B Instruct or Llama 3 3 Nemotron Super 49B v1 5 has a published result
BoardLlama 3 1 Nemotron 51B InstructLlama 3 3 Nemotron Super 49B v1 5Leads
Arena textArena (LMArena)12871277–1297Not reported13431333–1353Not reportedLlama 3 3 Nemotron Super 49B v1 5
Arena codingArena (LMArena)13121291–133414031381–1425Llama 3 3 Nemotron Super 49B v1 5

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 Llama 3 3 Nemotron Super 49B v1 5: common questions

Is Llama 3 1 Nemotron 51B Instruct better than Llama 3 3 Nemotron Super 49B v1 5?

Llama 3 3 Nemotron Super 49B v1 5 ranks higher on the ModelCap Index as of 21 October 2026: #165 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 do not overlap, but the aggregate Index does not predict performance on every task; compare the relevant benchmark configurations before choosing.

Is Llama 3 1 Nemotron 51B Instruct cheaper than Llama 3 3 Nemotron Super 49B v1 5?

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 Llama 3 3 Nemotron Super 49B v1 5?

Llama 3 1 Nemotron 51B Instruct: context unknown. Llama 3 3 Nemotron Super 49B v1 5: context unknown. 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 Llama 3 3 Nemotron Super 49B v1 5?

Arena coding: Llama 3 1 Nemotron 51B Instruct 1312, Llama 3 3 Nemotron Super 49B v1 5 1403 — Llama 3 3 Nemotron Super 49B v1 5 leads.

Are Llama 3 1 Nemotron 51B Instruct and Llama 3 3 Nemotron Super 49B v1 5 open-weight models?

Llama 3 1 Nemotron 51B Instruct: Restricted license. Llama 3 3 Nemotron Super 49B v1 5: 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 Llama 3 3 Nemotron Super 49B v1 5?

ModelCap currently lists 0 API providers for Llama 3 1 Nemotron 51B Instruct and 0 for Llama 3 3 Nemotron Super 49B v1 5, 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 Llama 3 3 Nemotron Super 49B v1 5 comparison?

Every figure and ModelCap Index position comes from the same published snapshot dated 21 October 2026. Publication and page updates happen separately; use the snapshot date shown on the page.

Explore further