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Head-to-head comparison

Nemotron 3.5 Lightning vs Laguna XS.2

Nemotron 3.5 Lightning (NVIDIA) and Laguna XS.2 (Poolside) 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 22 September 2026

As of 22 September 2026, Laguna XS.2 holds the stronger ModelCap Index position (#81 vs #82); and Laguna XS.2 ships open weights.

Which should you choose?

Choose Nemotron 3.5 Lightning if…

  • you want provider choice — 4 listed API providers against 0.
  • you want the more recently listed model — Nemotron 3.5 Lightning was listed 11 August 2026, Laguna XS.2 23 April 2026.

Choose Laguna XS.2 if…

  • you want the stronger overall ModelCap Index position — #81 against #82 (53.9 vs 53.7 points).
  • you want to self-host: Laguna XS.2 ships open weights while Nemotron 3.5 Lightning is restricted license.

Nemotron 3.5 Lightning vs Laguna XS.2: specs, pricing and context

Specification comparison of Nemotron 3.5 Lightning and Laguna XS.2
FieldNemotron 3.5 LightningNVIDIALaguna XS.2Poolside
ModelCap Index position#82#81
Index score53.753.9
EvidenceMeasuredEstimated
Input price / 1M tokens$0.07Unlisted
Output price / 1M tokens$0.20Unlisted
Context window262K tokens— tokens
Max output tokens236K—
API providers listed40
Weight accessRestricted licenseOpen weights
Input modalitiesTextText
First listed11 August 202623 April 2026
PublisherNVIDIAPoolside

Evidence: 1 public benchmark observation across 1 board · global-corpus-prior over 201 held-out anchors (7%); launch card against 5 resolved peers on 4 rows (93%); optimism haircut 0 from cross-lab-probe. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Nemotron 3.5 Lightning vs Laguna XS.2

Public benchmark boards where Nemotron 3.5 Lightning or Laguna XS.2 has a published result
BoardNemotron 3.5 LightningLaguna XS.2Leads
AA Intelligence IndexArtificial Analysis12.9intelligence-index:v4.3:reasoning-unspecified—Only one result
AA Humanity's Last ExamArtificial Analysis10.6%hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Nemotron 3.5 Lightning":reasoning=true—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.

Nemotron 3.5 Lightning vs Laguna XS.2: common questions

Is Nemotron 3.5 Lightning better than Laguna XS.2?

Laguna XS.2 ranks higher on the ModelCap Index as of 22 September 2026: #81 against #82. 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 Nemotron 3.5 Lightning cheaper than Laguna XS.2?

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, Nemotron 3.5 Lightning or Laguna XS.2?

Both publish a 262K-token context window.

Which is better for coding, Nemotron 3.5 Lightning or Laguna XS.2?

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 Nemotron 3.5 Lightning and Laguna XS.2 open-weight models?

Nemotron 3.5 Lightning: Restricted license. Laguna XS.2: Open weights. 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 Nemotron 3.5 Lightning and Laguna XS.2?

ModelCap currently lists 4 API providers for Nemotron 3.5 Lightning and 0 for Laguna XS.2, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Nemotron 3.5 Lightning vs Laguna XS.2 comparison?

Every figure comes from the sealed ModelCap dataset published 22 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.

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