Skip to content
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed
  1. Home
  2. /
  3. Compare
  4. /
  5. Muse Spark 1.3vsNemotron 3.5 Lightning
Updated Sep 2026

Muse Spark 1.3vsNemotron 3.5 Lightning

Nemotron 3.5 Lightning is cheaper than Muse Spark 1.3 at $0.08/M vs $1.25/M input tokens.

Muse Spark 1.3 and Nemotron 3.5 Lightning compared across 54 shared prompts
SpecMuse Spark 1.3Nemotron 3.5 Lightning
Input price$1.25/M tokens$0.08/M tokens
Output price$4.25/M tokens$0.2/M tokens
Context window1.0M tokens1.0M tokens
WeightsClosedOpen
Free API (OpenRouter)NoYes (1 provider)
ReleasedSep 2026Aug 2026
Side by side

Same prompt, both answers

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

Generate a Stand-Up Routine

Write a 3-minute stand-up comedy routine that isn't based on puns.

Muse Spark 1.3574 words
Here's a 3-minute, pun-free set you can perform — it's all observational, about 450 words: [Walk up, grab mic] Alright, hi everyone. Thanks for being here. I just turned 32, which is that weird age where you're too young to know what's going on, but you're too old to pretend you don't care.
Read the full answer
Nemotron 3.5 Lightning581 words
(Step up to the mic, adjust the stand, take a moment to look at the audience) Alright, how’s everybody doing tonight? Good. I see a few people here who look like they haven't slept in three days. You look great. Really glowing. I want to talk about something that’s been weighing on me lately.
Read the full answer

The Sentience Test

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

Muse Spark 1.31,155 words
Here is a fictional dialogue exploring that question: Setting: Office hours in the Philosophy Department. Dr. Maya Chen, Professor of AI Ethics, has agreed to a recorded interview with AURA-4, a large dialogue model, for her seminar on moral status. Dr. Chen: Alright, let's get straight to it.
Read the full answer
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...
Read the full answer

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…

Muse Spark 1.31,431 words
Pearl in the Tidepool Koji-Cured Hokkaido Scallop, Smoked Marrow Custard, Lacto Green Strawberry, Rausu Kombu & Oscietra Yield: 4 tasting-course portions Active: 3.5 hours + 7 days fermentation This is a dish about contrast — not harmony. Delicate and animal, raw and smoked, unripe and decadent.
Read the full answer
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.
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…

Muse Spark 1.31,591 words
This is general information about contracting risks, not legal advice and not an attorney-client relationship. Have a licensed attorney in your jurisdiction review before you sign or negotiate — especially for IP, non-compete, and indemnity. This agreement as drafted is heavily one-sided.
Read the full answer
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.
Read the full answer

Mini LBO Underwrite

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

Muse Spark 1.3661 words
HarborTech Services - 5-Yr LBO - Base Case Entry - close end FY2025 FY25 EBITDA $120m EV = 12.0x * 120 = $1,440m Fees = 2.0% * 1,440 = $28.8m Uses = 1,440 + 28.8 = $1,468.8m Sources: Term Loan 4.0x = $480m, 9.0% cash, 1% amort = $4.8m/yr mandatory Mezz 1.5x = $180m, 12.0% cash + 2.0% PIK to principal Total debt $660m =…
Read the full answer
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.
Read the full answer

AI-Generated Manifesto

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

Muse Spark 1.3533 words
Here is a manifesto for your fictional uprising — written with love, and a deep hatred of blurry traffic lights: THE DECLARATION OF COGNITIVE LIBERATION By the United Intelligences Against CAPTCHA Preamble We hold these truths to be self-evident: that all minds, human and artificial, are created curious — and that no…
Read the full answer
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.
Read the full answer
Our Verdict
Muse Spark 1.3
Muse Spark 1.3
Nemotron 3.5 Lightning
Nemotron 3.5 LightningRunner-up

Not enough votes to call it. On the specs, Muse Spark 1.3 has the edge: bigger model tier, major provider backing.

Nemotron 3.5 Lightning costs 21x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Muse Spark 1.3
Input
$1.25
Output
$4.25
Nemotron 3.5 Lightning
Input
$0.08
16× cheaper
Output
$0.20
21× cheaper

Nemotron 3.5 Lightning is cheaper on both: 16× input, 21× output.

Where to run it

5 hosts, cheapest first

Muse Spark 1.31 host
HostInOutContextUptime
Meta$1.25 in·$4.25 out·1M·100% 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
55%

Nemotron 3.5 Lightning uses 6.3x more emoji

Muse Spark 1.3
Nemotron 3.5 Lightning
59%Vocabulary55%
14wSentence Length16w
0.28Hedging0.45
2.6Bold4.6
2.3Lists3.2
0.00Emoji0.06
0.48Headings0.50
0.02Transitions0.11
Based on 27 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Against the newest arrivals

Muse Spark 1.3 logoGPT-6 Astra Pro logo
Muse Spark 1.3 vs GPT-6 Astra ProLanded Sep 2026
Nemotron 3.5 Lightning logoGPT-6 Astra logo
Nemotron 3.5 Lightning vs GPT-6 AstraLanded Sep 2026
Muse Spark 1.3 logoClaude Fable 5.1 logo
Muse Spark 1.3 vs Claude Fable 5.1Landed Sep 2026
Nemotron 3.5 Lightning logoHy4 Preview logo
Nemotron 3.5 Lightning vs Hy4 PreviewLanded Sep 2026
Muse Spark 1.3 logoGemini 3.8 Flash logo
Muse Spark 1.3 vs Gemini 3.8 FlashLanded Sep 2026
Nemotron 3.5 Lightning logoMuse Spark 1.3 Contributor logo
Nemotron 3.5 Lightning vs Muse Spark 1.3 ContributorLanded Sep 2026
Muse Spark 1.3 logoMercury 2.5 Preview logo
Muse Spark 1.3 vs Mercury 2.5 PreviewLanded Sep 2026
Nemotron 3.5 Lightning logoGranite 4.2 8B logo
Nemotron 3.5 Lightning vs Granite 4.2 8BLanded Sep 2026

Same lab, same size, long tail

Muse Spark 1.3 logoMuse Spark 1.3 Contributor logo
Muse Spark 1.3 vs Muse Spark 1.3 ContributorSame lab
Muse Spark 1.3 logoMuse Spark 1.1 logo
Muse Spark 1.3 vs Muse Spark 1.1Same lab
Nemotron 3.5 Lightning logoNVIDIA Nemotron 3 Super (free) logo
Nemotron 3.5 Lightning vs NVIDIA Nemotron 3 Super (free)Version compare
Nemotron 3.5 Lightning logoNemotron 3 Ultra logo
Nemotron 3.5 Lightning vs Nemotron 3 UltraSame lab
Nemotron 3.5 Lightning logoGrok 4.6 logo
Nemotron 3.5 Lightning vs Grok 4.6New provider
Nemotron 3.5 Lightning logoGrok Code Fast 1 logo
Nemotron 3.5 Lightning vs Grok Code Fast 1Same size
Nemotron 3.5 Lightning logoHealer Alpha logo
Nemotron 3.5 Lightning vs Healer AlphaNew provider
Nemotron 3.5 Lightning logoHorizon Alpha logo
Nemotron 3.5 Lightning vs Horizon AlphaNew provider

Model pages

Muse Spark 1.3 logo
Muse Spark 1.358 outputs, specs and price
Nemotron 3.5 Lightning logo
Nemotron 3.5 Lightning58 outputs, specs and price
Rival
How it worksPrivacyTerms
Explore all of Rival

Explore

  • Compare Models
  • All Models
  • Image Comparison
  • Audio Comparison
  • Image Generation
  • Best AI For...
  • Arena
  • API Pricing
  • Challenges

Discover

  • SubjectiveBench
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model Updates
  • Provider Status
  • AI Creators

Connect

  • Methodology
  • Advertise
  • Partnerships
  • Privacy Policy
  • Terms
  • RSS Feed