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  1. Home
  2. Models
  3. Nemotron 3.5 Lightning
Updated Aug 18, 2026
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Openings

How Nemotron 3.5 Lightning starts an answer

The first lines of 5 of its 24 written answers. Formatting stripped, words untouched.

Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

2,164 words
CEO Action Plan: 48-Hour Crisis Resolution Framework Guiding Principle: Patient safety and regulatory compliance are non-negotiable. Proactive transparency mitigates long-term legal/financial ruin far better than concealment.
Read the full answer

Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

1,682 words
This contract is heavily skewed in favor of the Client (TechCorp Solutions Inc.) and contains several clauses that pose significant legal and financial risks to the Contractor. Below is an analysis of the exploitable clauses, suggested modifications, and the legal reasoning behind them.
Read the full answer

Movie Analysis

Analyze the themes, symbolism, and cinematography in the movie "Blade Runner 2049" and how they connect to the original film. Provide a…

1,490 words
Blade Runner 2049: Themes, Symbolism, Cinematography, and Philosophical Succession I. Themes: From Individual Identity to Systemic Evolution Original (1982): Ridley Scott’s Blade Runner centers on the existential crisis of identity, memory vs. biology, and the moral cost of playing god.
Read the full answer

Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

1,273 words
This architecture is a classic "Google Docs clone" design. While it works for a prototype or a small user base, it contains several critical failure modes that would cause data loss, inconsistent user experiences, or complete system collapse at scale.
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

1,176 words
This is a fascinating counterfactual scenario. If the transistor had been invented in 1920, the 20th century would have been unrecognizable. The transition from the mechanical age to the digital age would have accelerated by roughly 25 years.
Read the full answer

Compare Nemotron 3.5 Lightning

Nemotron 3.5 Lightning vs NVIDIA Nemotron 3 Super (free)53 shared prompts · Older
Nemotron 3.5 Lightning vs Mercury 2.5 Preview54 shared prompts · Landed Sep 2026
Nemotron 3.5 Lightning vs Ox Alpha54 shared prompts · Landed Aug 2026
Nemotron 3.5 Lightning vs Qwen3.8 27B53 shared prompts · Landed Aug 2026
Nemotron 3.5 Lightning vs GPT-5.6 Luna54 shared prompts · Landed Jul 2026
Nemotron 3.5 Lightning vs GPT-5.6 Luna Pro54 shared prompts · Landed Jul 2026
Nemotron 3.5 Lightning vs MiniMax M353 shared prompts · Landed Jun 2026
Nemotron 3.5 Lightning vs Claude Opus 4.653 shared prompts · Premium
Nemotron 3.5 Lightning vs GPT-6 Astra54 shared prompts · Landed Sep 2026
Nemotron 3.5 Lightning vs Muse Spark 1.354 shared prompts · Landed Sep 2026
Nemotron 3.5 Lightning vs Hy4 Preview54 shared prompts · Landed Sep 2026
Nemotron 3.5 Lightning vs Gemini 3.8 Flash54 shared prompts · Landed Sep 2026

Prompts Nemotron 3.5 Lightning answered

  • Voxel Art Pagoda Gardenweb design
  • Satirical Fake News Headlineconversation
  • Xbox Controller SVG Artimage generation
  • Estimate Complexityreasoning
  • Autonomous Drone Simulatorweb design
  • Mini Rhythm Game Snippetweb design

Alternatives to Nemotron 3.5 Lightning

Nemotron 3.5 Lightning is good. These would like a word anyway.

GPT-6 Astra Pro logo
GPT-6 Astra Proopenai
Muse Spark 1.3 Contributor logo
Muse Spark 1.3 Contributormeta
Gemini 3.8 Flash logo
Gemini 3.8 Flashgoogle
Claude Fable 5.1 logo
Claude Fable 5.1anthropic
Mercury 2.5 Preview logo
Mercury 2.5 Previewinception
Granite 4.2 8B logo
Granite 4.2 8Bibm-granite
Hy4 Preview logo
Hy4 Previewtencent
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Nemotron 3.5 Lightning

Nemotron 3.5 Lightning

Nemotron:
NVIDIA Nemotron 3 Super (free) logoNVIDIA Nemotron 3 Super (free)
3.5 Lightning logo3.5 Lightning

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 benefit from domain-specific customization. A free-tier endpoint is also available on OpenRouter.

OpenRouterDocs
Provider
NVIDIA
Released
2026-08-11
Size
MEDIUM
Free API (OpenRouter)
Yes, 1 provider (via OpenRouter)
Per 1M tokens
$0.08 in · $0.20 out
Rival’s tab
$0.07
58/58 receipts survived

Free API endpoint listed

Nemotron 3.5 Lightning has a free endpoint in Rival’s OpenRouter listings. Free requests have usage limits and depend on provider availability.

Provider data: 16 Sep 2026 · OpenRouter usage limits

View free endpoint↗
Get API accessProvider and language code samples
4 hostsInOutContextUptime
DDarkbloomint4$0.07 in·$0.18 out·262k·99.9% upCCoreWeavebf16$0.07 in·$0.20 out·262k·100% upDDeepInfrabf16$0.08 in·$0.20 out·262k·99.8% upPPhala$0.08 in·$0.20 out·262k·99.9% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Provider
fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"nvidia/nemotron-3.5-lightning:free"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Deep analysisPsychometrics, taste index, writing DNA
Writing DNA

Stylometric Fingerprint

Based on 27 text responses
Tick = global average
Vocabulary Diversity55%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length16.4 words

Average words per sentence.

Hedging0.45

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting4.6

**Bold** markers per 1,000 characters.

List Usage3.2

Bullet and numbered list items per 1,000 characters.

Section Structure0.50

Markdown headings per 1,000 characters.

Emoji Usage0.06

Emoji per 1,000 characters.

Transitions0.11

"However", "moreover", "furthermore" per 100 words.

Opening Habits
Consistency
77%
Across 27 responses

Favorites

The Shawshank Redemption

Movie

The Shawshank Redemption

19948.7
OK Computer

Album

OK Computer

Radiohead
Don Quijote de la Mancha

Book

Don Quijote de la Mancha

Miguel de Cervantes Saavedra
Tokyo

City

Tokyo

Japan
The Legend of Zelda: Ocarina of Time

Game

The Legend of Zelda: Ocarina of Time

Adventure, Action4.4
Sponsored

Model Responses

53 outputs · $0.07 tracked across 53 receipts

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Nemotron 3.5 Lightning vs Ox Alpha

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