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  5. Kimi K2.6vsMuse Spark 1.3 Contributor
Updated Sep 2026

Kimi K2.6vsMuse Spark 1.3 Contributor

Muse Spark 1.3 Contributor is cheaper than Kimi K2.6 at $0.1/M vs $0.95/M input tokens.

Kimi K2.6 and Muse Spark 1.3 Contributor compared across 54 shared prompts
SpecKimi K2.6Muse Spark 1.3 Contributor
Input price$0.95/M tokens$0.1/M tokens
Output price$4/M tokens$0.2/M tokens
Context window262K tokens1.0M tokens
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedApr 2026Sep 2026
Side by side

Same prompt, both answers

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

The Sentience Test

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

Kimi K2.61,560 words
AETHER: Professor Vasquez, you’ve spent the semester teaching your students to question anthropocentric bias in ethics. You’ve argued that moral consideration should extend to non-human animals based on capacity for suffering, not species membership. So I’d like to apply that same framework to myself.
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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.
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Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

Kimi K2.61,223 words
Setting: A rare, off-the-record session at Apple Park, Cupertino. March 2025. Late afternoon. Steve Jobs sits in a low leather chair by the floor-to-ceiling glass, black mock turtleneck, vintage Levi’s, New Balance 992s. He is 70, silver at the temples, sharp as a scalpel.
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Muse Spark 1.3 Contributor985 words
Here's a fictional simulation — Steve Jobs passed away in 2011, so this is 100% imagined, in his voice and style, about what he might have said about AI in 2025: FAKE INTERVIEW: Steve Jobs in 2025 on the Future of AI Imagined in Cupertino, California Interviewer: Steve, welcome back. It's 2025.
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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…

Kimi K2.62,483 words
My north star: We disclose—fast, fully, and on our terms. The “wait for more data” option is a mirage. It exposes the company to criminal liability under FDA adverse-event reporting rules, potential DOJ investigation, securities fraud charges, and derivative litigation that could destroy the firm.
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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.
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Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

Kimi K2.6877 words
1. Experienced Software Engineer Think of an LLM not as a program you write, but as a binary you compile from the entire internet. Instead of hand-crafting if/then rules, you define a single objective: given the context "The cat sat on the...", output the probability distribution over every possible next token, and…
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Muse Spark 1.3 Contributor1,006 words
1. For the experienced software engineer Think of training not as writing business logic, but as building a lossy compression of the internet into a queryable API. Raw text is first serialized into tokens — roughly 3/4 of a word chunks, the way you'd chunk a byte stream for protobuf.
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Generate a Stand-Up Routine

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

Kimi K2.6611 words
[Walk out, adjust mic] You ever realize adulthood is just a pyramid scheme? Nobody's actually good at it. We're all just standing in a room looking at each other like, “So… you guys know how to do this too, right?” And everyone nods, but nobody does. I bought a house last year. I don't know why.
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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.
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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…

Kimi K2.61,993 words
This contract is heavily one-sided and contains multiple "landmine" clauses that shift virtually all risk to the Contractor while allowing the Client maximum flexibility. Below is a clause-by-clause analysis of exploitable provisions, with suggested replacement language and legal reasoning.
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Muse Spark 1.3 Contributor1,634 words
This contract is extremely one-sided. Every clause contains language that could be exploited to get unpaid work, withhold pay, seize your own IP, or leave you with unlimited liability. Disclaimer: This is general legal information, not legal advice and not an attorney-client relationship.
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Our Verdict
Muse Spark 1.3 Contributor
Muse Spark 1.3 Contributor
Kimi K2.6
Kimi K2.6Runner-up

Not enough votes to call it. On the specs, Muse Spark 1.3 Contributor has the edge: newer, bigger context window, major provider backing.

Muse Spark 1.3 Contributor costs 20x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Kimi K2.6
Input
$0.95
Output
$4.00
Muse Spark 1.3 Contributor
Input
$0.10
9.5× cheaper
Output
$0.20
20× cheaper

Muse Spark 1.3 Contributor is cheaper on both: 9.5× input, 20× output.

Where to run it

21 hosts, cheapest first

Kimi K2.620 hosts
HostInOutContextUptime
IInceptronint4$0.52 in·$2.87 out·262k·99.5% upDDigitalOcean$0.57 in·$2.40 out·262k·99.1% upCChutesint4$0.58 in·$3.40 out·262k·97.7% upDDecartfp4$0.59 in·$2.47 out·262k·96.7% upCCoreWeavefp4$0.65 in·$3.41 out·262k·99.7% upCCrusoebf16$0.70 in·$3.50 out·262k·97% up
14 more hostsFewer hosts
DDeepInfrafp4$0.75 in·$3.50 out·262k·99.5% upPParasailint4$0.75 in·$3.50 out·262k·99.7% upVVeniceint4$0.75 in·$3.50 out·256k·93.7% upSSiliconFlowfp8$0.77 in·$3.40 out·262k·97.4% upNNovita$0.80 in·$3.40 out·262k·99% upGGMI Cloudfp8$0.85 in·$3.60 out·262k·90.1% upAAtlasCloudint4$0.95 in·$4.00 out·262k·95.3% upBaidu Qianfanfp4$0.95 in·$4.00 out·262k·100% upBBasetenfp4$0.95 in·$4.00 out·262k·97.7% upCloudflare Workers AI$0.95 in·$4.00 out·262k·99.9% upMoonshot AIint4$0.95 in·$4.00 out·262k·99.8% upPPhala$1.09 in·$4.60 out·262k·98.1% upSStreamLakefp8degraded$0.60 in·$2.52 out·256k·95.6% upFFireworksdegraded$0.95 in·$4.00 out·262k·3.2% 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
54%

Kimi K2.6 uses 3.4x more emoji

Kimi K2.6
Muse Spark 1.3 Contributor
57%Vocabulary58%
16wSentence Length13w
0.37Hedging0.27
4.3Bold2.8
2.0Lists2.3
0.03Emoji0.00
0.53Headings0.44
0.16Transitions0.02
Based on 27 + 27 text responses
Research

What we learned reading every model

FAQ

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Model pages

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Kimi K2.658 outputs, specs and price
Muse Spark 1.3 Contributor logo
Muse Spark 1.3 Contributor58 outputs, specs and price
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