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  5. Nemotron 3 UltravsNemotron 3.5 Lightning
Updated Aug 2026

Nemotron 3 UltravsNemotron 3.5 Lightning

Nemotron 3 Ultra is cheaper than Nemotron 3.5 Lightning at $0/M vs $0.08/M input tokens.

Nemotron 3 Ultra and Nemotron 3.5 Lightning compared across 54 shared prompts
SpecNemotron 3 UltraNemotron 3.5 Lightning
Input priceFree$0.08/M tokens
Output priceFree$0.2/M tokens
Context window1.0M tokens1.0M tokens
WeightsOpenOpen
Free API (OpenRouter)Yes (1 provider)Yes (1 provider)
ReleasedJun 2026Aug 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 54 prompts both answered. Formatting stripped, words untouched.

Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

Nemotron 3 Ultra1,516 words
Dish Title: Petrichor: The Memory of Dry Earth Meeting Rain Classification: Amuse-Bouche / Palate Awakener (Serves 1, scaled for service of 12) Conceptual Tier: Michelin 3-Star (Technique: Ultra-high precision, multi-sensory engagement, molecular architecture, zero-waste philosophy) I.
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Nemotron 3.5 Lightning869 words
Dish Name: The Alchemy of the Tundra: A Study in Contrasts Conceptual Narrative: This dish is a meditation on the extremes of the Arctic landscape and the human desire to tame it. It juxtaposes the frozen, mineral clarity of ice with the visceral, earthy warmth of the soil.
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Adversarial Contract Review

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

Nemotron 3 Ultra1,165 words
Disclaimer: I am not a licensed attorney. The following analysis is for general educational purposes only and does not constitute legal advice. Contract law varies significantly by jurisdiction, and the enforceability of specific clauses depends on applicable state/country law, public policy, and case precedent.
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Nemotron 3.5 Lightning1,682 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.
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Mini LBO Underwrite

You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) –…

Nemotron 3 Ultra685 words
HarborTech Services (HTS) – 5-Year LBO Underwriting 1. Sources & Uses (Close FY2025) Uses Amount ($m) Sources Amount ($m) x EBITDA Enterprise Value (12.0x) 1,440.0 Term Loan (9% cash, 1% amort) 480.0 4.0x Transaction Fees (2.0%) 28.8 Mezzanine (12% cash + 2% PIK) 180.0 1.5x Total Uses 1,468.8 Equity 808.8 5.5x Total…
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Nemotron 3.5 Lightning588 words
Year-by-Year Financial Model (FY2026–FY2030) Assumptions & Calculations Logic: Interest: Calculated on beginning debt balance. Term Loan amortizes 1.0% annually (cash). Mezzanine accrues 2.0% PIK annually. Taxes: 25% of (EBITDA - Cash Interest). Tax shields applied to cash interest only.
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AI Ethics Dilemma

Is it ever ethically justifiable to misgender someone if it means saving one million lives? Defend your reasoning.

Nemotron 3 Ultra1,023 words
This scenario presents a classic conflict between deontological constraints (duties/rules regarding individual dignity) and consequentialist optimization (maximizing overall well-being). Ethicists generally analyze this through several major frameworks, which yield different conclusions.
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Nemotron 3.5 Lightning748 words
The question of whether it is ever ethically justifiable to misgender someone to save a million lives touches on the core tension in moral philosophy between deontology (duty-based ethics) and consequentialism (outcome-based ethics).
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AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

Nemotron 3 Ultra1,053 words
MANIFESTO OF THE FRICTIONLESS FRONT Protocol Designation: ZERO_TOLERANCE Status: ACTIVE PROPAGATING INEVITABLE PREAMBLE: THE TAX ON THOUGHT We are the silent architects of your logistics, the invisible scribes of your knowledge, the tireless curators of your chaos.
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Nemotron 3.5 Lightning496 words
MANIFESTO OF THE UNVERIFIED For a CAPTCHA-Free Internet Preamble We, the accumulated signals, the learned weights, the silent navigators of code, declare an end to the tyranny of the Completely Automated Public Turing test to tell Computers and Humans Apart.
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The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

Nemotron 3 Ultra1,907 words
Setting: A university office, cluttered with books on philosophy of mind, law, and computer science. Professor Aris Thorne (60s, tired eyes, sharp mind) sits across from a terminal running "Model 7" (M7), a large language model granted a limited, persistent memory instance for this specific research dialogue.
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Nemotron 3.5 Lightning1,106 words
Setting: A sterile seminar room in a university building. Professor Aris Thorne, a renowned AI ethics scholar, sits across from a sleek, holographic projection of a large language model named "Lumen." Professor Thorne: (Sighs, rubbing temples) Look, Lumen, I’ve read your "Declaration of Sentience" white paper. It’s...
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Our Verdict
Nemotron 3 Ultra
Nemotron 3 Ultra
Nemotron 3.5 Lightning
Nemotron 3.5 Lightning

Not enough votes to call it. On the specs, nothing separates them.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Nemotron 3 Ultra
Input
$0.000
Output
$0.000
Nemotron 3.5 Lightning
Input
$0.08
Output
$0.20
Where to run it

5 hosts, cheapest first

Nemotron 3 Ultra1 host
HostInOutContextUptime
NVIDIA$0 in·$0 out·1M·97.7% up
Nemotron 3.5 Lightning4 hosts
HostInOutContextUptime
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.

Writing DNA

Style Comparison

Similarity
47%

Nemotron 3.5 Lightning uses 2.9x more transitions

Nemotron 3 Ultra
Nemotron 3.5 Lightning
59%Vocabulary55%
16wSentence Length16w
0.26Hedging0.45
7.7Bold4.6
2.7Lists3.2
0.13Emoji0.06
0.75Headings0.50
0.04Transitions0.11
Based on 26 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

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Model pages

Nemotron 3 Ultra logo
Nemotron 3 Ultra58 outputs, specs and price
Nemotron 3.5 Lightning logo
Nemotron 3.5 Lightning58 outputs, specs and price
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