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NVIDIA

Nemotron 3.5 Lightning (free)

nvidia/nemotron-3.5-lightning:free

NVIDIA Nemotron 3.5 Lightning is an open mixture-of-experts model from NVIDIA, with 3B active parameters out of 30B total.

Free in · Free out per 1M tokens1M contextAug 11, 2026

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Spec sheet

Published facts from the catalog, billed prices and what we measured here. Anything not measured says so.

Price, billed here

Input, per 1M tokens
$0
Output, per 1M tokens
$0
Margin
none

Context and formats

Context window
1,000,000 tokens
Longest answer
65,536 tokens
Reads
text
Makes
text
First listed
2026-08-11

Measured here, last 7 days

First token, median
not measured
Answered without error
not measured

Tools and JSON

Tool calling
declaredthe provider's claim, not yet measured here
JSON output
not declared

Price and latency history as JSON: GET /api/planet/history?id=nvidia/nemotron-3.5-lightning:free.

About

NVIDIA Nemotron 3.5 Lightning is an open mixture-of-experts model from NVIDIA, with 3B active parameters out of 30B total. It is suited for high-throughput agentic workloads and specialized tasks that...

In NVIDIA's words.

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The answer appears here.

Measured here

Call it

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curl https://useantimatter.com/v1/chat/completions \
  -H "Authorization: Bearer $ANTIMATTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "nvidia/nemotron-3.5-lightning:free", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

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Nemotron 3.5 Lightning (free) price on Antimatter
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