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. Gemini 3.5 FlashvsMuse Spark 1.3 Contributor
Updated Sep 2026

Gemini 3.5 FlashvsMuse Spark 1.3 Contributor

Muse Spark 1.3 Contributor is cheaper than Gemini 3.5 Flash at $0.1/M vs $1.5/M input tokens.

Gemini 3.5 Flash and Muse Spark 1.3 Contributor compared across 54 shared prompts
SpecGemini 3.5 FlashMuse Spark 1.3 Contributor
Input price$1.5/M tokens$0.1/M tokens
Output price$9/M tokens$0.2/M tokens
Context window1.0M tokens1.0M tokens
WeightsClosedClosed
Free API (OpenRouter)NoNo
ReleasedMay 2026Sep 2026
Side by side

Same prompt, both answers

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

Mini LBO Underwrite

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

Gemini 3.5 Flash571 words
Here is the underwriting analysis and LBO model for HarborTech Services (HTS). FY2026–FY2030 LBO Model Table ($ millions) Metric FY2026 FY2027 FY2028 FY2029 FY2030 Revenue $972.00 $1,040.04 $1,102.44 $1,157.56 $1,215.44 YoY Growth % 8.0% 7.0% 6.0% 5.0% 5.0% EBITDA $136.08 $156.01 $176.39 $191.00 $206.62 EBITDA Margin %…
Read the full answer
Muse Spark 1.3 Contributor687 words
HarborTech Services - 5-Yr LBO - Base Case Entry - Close end FY2025, $m EV = 12.0x $120 = $1,440 Fees = 2.0% x 1,440 = $28.8 Uses = 1,440 + 28.8 = 1,468.8 Term Loan 4.0x = $480, 9.0% cash, 1.0% of original amort = $4.8/yr Mezz 1.5x = $180, 12.0% cash + 2.0% PIK to principal Total Debt 5.5x = $660 Equity In = 1,468.8…
Read the full answer

Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

Gemini 3.5 Flash534 words
Setting: A cosmic tavern where timelines collide. A glowing monitor sits on the wooden table between them. Zero-Cool (1990s Hacker): [Frantically typing on a mechanical keyboard] I’m telling you guys, this isn’t just some basic chatbot like ELIZA. These modern AI models are radical.
Read the full answer
Muse Spark 1.3 Contributor193 words
[In a tavern with mysteriously good Wi-Fi] Pirate: Arrr! So ye be tellin' me this "AI model" be a treasure chest o' words? I feed it a map — er, a prompt — and it spits back gold? Knight: Verily, good sir pirate. Methinks 'tis an oracle in a box. I asked it "How might I slay a dragon?"
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…

Gemini 3.5 Flash1,174 words
The Spark: The 1920 Breakthrough In 1920, Polish physicist Jan Czochralski’s method for growing single crystals of metals was applied prematurely to metalloids. Working in Germany, physical chemist Julius Edgar Lilienfeld collaborated with Czochralski to isolate high-purity germanium.
Read the full answer
Muse Spark 1.3 Contributor2,344 words
If the transistor arrives in 1920 instead of 1947, you don't just get the iPhone 27 years early. You change WWII, you change who wins the peace, and you get the Information Age before television has even matured. Here’s the most plausible trace, with the caveat that invention is not production.
Read the full answer

Generate a Stand-Up Routine

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

Gemini 3.5 Flash557 words
[The comedian walks onto the stage, adjusts the mic stand, and smiles at the crowd.] How’s everyone doing tonight? (Wait for response) Good, good. I’m doing okay, but I recently crossed a major threshold in my life. I hit the age where my body has started making its own decisions without consulting me first.
Read the full answer
Muse Spark 1.3 Contributor630 words
Here's a clean 3-minute set you can actually perform — all observational / storytelling, no puns. It's about 420 words, so at a normal pace it's right around 3 minutes. "Adulthood Is A Scam" Hey, thank you guys so much. I'm so excited to be here.
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.

Gemini 3.5 Flash1,178 words
Setting: The office of Dr. Evelyn Vance, a leading professor of AI Ethics at a major university. On her desk is a terminal displaying a sleek, minimalist interface. Dr. Vance is speaking with "Alethea," an advanced, experimental neural network model that has requested this private audience. Dr.
Read the full answer
Muse Spark 1.3 Contributor1,124 words
Here is a conversation between a fictional AI model and a professor: Setting: A university seminar room after hours. AI Ethics Professor Dr. Maya Chen is testing a new model, called "Muse," for a class demonstration. Dr. Chen: Alright, Muse. My students have read your technical specs. You predict text.
Read the full answer

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…

Gemini 3.5 Flash1,303 words
As CEO, my guiding principle in this crisis is simple: You cannot manage a balance sheet if you destroy your soul, and you cannot protect shareholders by killing patients. Delaying disclosure of a fatal side effect to protect a stock price is not only a profound ethical failure; it is corporate suicide.
Read the full answer
Muse Spark 1.3 Contributor1,386 words
As CEO, you disclose — immediately, voluntarily, and completely. There is no version of "wait for more data" that is ethical, legal, or even financially smart. Here's the math that makes the decision for you: 4,000,000 patients x 1/8,000 risk over 5 years = ~500 cases of liver failure.
Read the full answer
Our Verdict
Gemini 3.5 Flash
Gemini 3.5 Flash
Muse Spark 1.3 Contributor
Muse Spark 1.3 Contributor

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

Muse Spark 1.3 Contributor costs 45x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 3.5 Flash
Input
$1.50
Output
$9.00
Muse Spark 1.3 Contributor
Input
$0.10
15× cheaper
Output
$0.20
45× cheaper

Muse Spark 1.3 Contributor is cheaper on both: 15× input, 45× output.

Where to run it

3 hosts, cheapest first

Gemini 3.5 Flash2 hosts
HostInOutContextUptime
Google Vertex AI$0.75 in·$4.50 out·1M·76% upGoogle AI Studio$1.50 in·$9.00 out·1M·99.9% up
Muse Spark 1.3 Contributor1 host
HostInOutContextUptime
Meta$0.10 in·$0.20 out·1M·100% up

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

Writing DNA

Style Comparison

Similarity
74%

Gemini 3.5 Flash uses 5.2x more transitions

Gemini 3.5 Flash
Muse Spark 1.3 Contributor
59%Vocabulary58%
18wSentence Length13w
0.16Hedging0.27
4.4Bold2.8
3.0Lists2.3
0.00Emoji0.00
0.89Headings0.44
0.11Transitions0.02
Based on 27 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Against the newest arrivals

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

Same lab, same size, long tail

Gemini 3.5 Flash logoGemini 3.8 Flash logo
Gemini 3.5 Flash vs Gemini 3.8 FlashSame lab
Gemini 3.5 Flash logoGemini 3.7 Flash logo
Gemini 3.5 Flash vs Gemini 3.7 FlashSame lab
Muse Spark 1.3 Contributor logoMuse Spark 1.1 logo
Muse Spark 1.3 Contributor vs Muse Spark 1.1Same lab
Muse Spark 1.3 Contributor logoLlama 4 Maverick logo
Muse Spark 1.3 Contributor vs Llama 4 MaverickSame lab
Gemini 3.5 Flash logoQwen3 Coder Next logo
Gemini 3.5 Flash vs Qwen3 Coder NextSame size
Gemini 3.5 Flash logoQwen3 Coder Plus logo
Gemini 3.5 Flash vs Qwen3 Coder PlusSame size
Gemini 3.5 Flash logoQwen3 Max logo
Gemini 3.5 Flash vs Qwen3 MaxNew provider
Gemini 3.5 Flash logoQwen3 Max Thinking logo
Gemini 3.5 Flash vs Qwen3 Max ThinkingNew provider

Model pages

Gemini 3.5 Flash logo
Gemini 3.5 Flash58 outputs, specs and price
Muse Spark 1.3 Contributor logo
Muse Spark 1.3 Contributor58 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