Skip to content
ModelCap

Head-to-head comparison

LFM2 8B A1B vs Llama 3 1 Nemotron 51B Instruct

LFM2 8B A1B (LiquidAI) and Llama 3 1 Nemotron 51B Instruct (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 17 September 2026

As of 17 September 2026, LFM2 8B A1B holds the stronger ModelCap Index position (#186 vs #189).

Which should you choose?

Choose LFM2 8B A1B if…

  • you want the stronger overall ModelCap Index position — #186 against #189 (17.9 vs 17.2 points).
  • you want the more recently listed model — LFM2 8B A1B was listed 7 October 2025, Llama 3 1 Nemotron 51B Instruct 22 September 2024.

Choose Llama 3 1 Nemotron 51B Instruct if…

  • ModelCap publishes no field on which Llama 3 1 Nemotron 51B Instruct leads LFM2 8B A1B for this pair.

LFM2 8B A1B vs Llama 3 1 Nemotron 51B Instruct: specs, pricing and context

Specification comparison of LFM2 8B A1B and Llama 3 1 Nemotron 51B Instruct
FieldLFM2 8B A1BLiquidAILlama 3 1 Nemotron 51B InstructNVIDIA
ModelCap Index position#186#189
Index score17.917.2
EvidenceEstimatedMeasured
Input price / 1M tokensUnlistedUnlisted
Output price / 1M tokensUnlistedUnlisted
Context window— tokens— tokens
Max output tokens——
API providers listed00
Weight accessRestricted licenseRestricted license
Input modalitiesTextText
First listed7 October 202522 September 2024
PublisherLiquidAINVIDIA

Evidence: global-corpus-prior over 197 held-out anchors (19%); launch card against 3 resolved peers on 10 rows (82%); exceeds every named peer on 8 of 10 rows; optimism haircut 9.5 from cross-lab-probe; shrunk 7.5 up toward the measured corpus · 2 public benchmark observations across 2 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: LFM2 8B A1B vs Llama 3 1 Nemotron 51B Instruct

Public benchmark boards where LFM2 8B A1B or Llama 3 1 Nemotron 51B Instruct has a published result
BoardLFM2 8B A1BLlama 3 1 Nemotron 51B InstructLeads
Arena codingArena (LMArena)—13121291–1334Only 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.

LFM2 8B A1B vs Llama 3 1 Nemotron 51B Instruct: common questions

Is LFM2 8B A1B better than Llama 3 1 Nemotron 51B Instruct?

LFM2 8B A1B ranks higher on the ModelCap Index as of 17 September 2026: #186 against #189. 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 LFM2 8B A1B cheaper than Llama 3 1 Nemotron 51B Instruct?

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, LFM2 8B A1B or Llama 3 1 Nemotron 51B Instruct?

Both publish a —-token context window.

Which is better for coding, LFM2 8B A1B or Llama 3 1 Nemotron 51B Instruct?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are LFM2 8B A1B and Llama 3 1 Nemotron 51B Instruct open-weight models?

LFM2 8B A1B: Restricted license. Llama 3 1 Nemotron 51B Instruct: Restricted license. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run LFM2 8B A1B and Llama 3 1 Nemotron 51B Instruct?

ModelCap currently lists 0 API providers for LFM2 8B A1B and 0 for Llama 3 1 Nemotron 51B Instruct, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this LFM2 8B A1B vs Llama 3 1 Nemotron 51B Instruct comparison?

Every figure comes from the sealed ModelCap dataset published 17 September 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

Explore further