Laguna S 2.1 vs Nemotron 3.5 Lightning.

model vs model · prices as of

Nemotron 3.5 Lightning takes 3 of 5 rounds against Laguna S 2.1. It is also the cheaper of the two to run, at $0.16 per million tokens against $0.45.

Poolside

Laguna S 2.1

$0.45/M tokens

Poolside list price, nothing below it is accounted for · $0.0648 per 1,000 pages

1M context · tool calling · open weights

NVIDIAwins 3 rounds

Nemotron 3.5 Lightning

$0.16/M tokens

cheapest we can explain, at NanoGPT · $0.0306 per 1,000 pages

262k context · tool calling · open weights

NanoGPT

List price in (lower wins)

$0.09/M

$0.08/M

List price out (lower wins)

$0.18/M

$0.20/M

Cheapest we can explain (lower wins)

none below list

$0.16/M at NanoGPT

Standard price (lower wins)

$0.45/M

$0.44/M

Cost per 1,000 pages (lower wins)

$0.0648

$0.0306

Context

1M tokens

262k tokens

Open weights

yes

yes

Tool calling

yes

yes

Structured output

no

yes

Reads images

no

no

Reasoning

yes

yes

Released

21 Jul 2026

11 Aug 2026

Providers selling it

8

12

Price we measure against

the maker's own

OpenRouter

Trains on your prompts (no is better)

no provider to check

not stated

Providers selling both · 5

  • NanoGPT$0.50 / $0.16
  • Nous Portal$0.45 / $0.38
  • Vercel AI Gateway$0.50 / $0.35
  • Kilo Gateway$0.50 / $0.38
  • OpenRouter$0.45 / $0.44

Laguna S 2.1 then Nemotron 3.5 Lightning, per million tokens

Go further

Add a third or fourth model, or switch the weighting, in the tool.

What moved in the last seven days

  1. Laguna S 2.1Nous Portal$0.07 / $0.14 $0.09 / $0.1825% dearer ·
  2. Nemotron 3.5 LightningCoreWeave$0.10 / $0.25 $0.07 / $0.2025% cheaper ·
  3. Nemotron 3.5 LightningKilo Gateway$0.08 / $0.20 $0.07 / $0.1815% cheaper ·
  4. Nemotron 3.5 LightningNous Portal$0.06 / $0.16 $0.07 / $0.187% dearer ·

Frequently asked

Which is cheaper, Laguna S 2.1 or Nemotron 3.5 Lightning?
Nemotron 3.5 Lightning, at $0.16 per million tokens against $0.45 for Laguna S 2.1, three parts input to one part output, read on 16 Sept 2026.
Where is each one cheapest?
Laguna S 2.1: nobody goes below the maker's own price with a reason we can point at, so $0.45 is the number to beat. Nemotron 3.5 Lightning: $0.16 at NanoGPT.
Can I buy both from one provider?
Yes. 5 providers sell both: NanoGPT, Nous Portal, Vercel AI Gateway, Kilo Gateway, OpenRouter. The cheapest of them for the two together is NanoGPT.
Which holds more context?
Laguna S 2.1, at 1M tokens against 262k.

Prices exclude tax and are per million tokens, read 16 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.

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