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  5. Kimi K2.5vsKimi K2.6
Updated Apr 2026

Kimi K2.5vsKimi K2.6

Kimi K2.5 is cheaper than Kimi K2.6 at $0.6/M vs $0.95/M input tokens.

Kimi K2.5 and Kimi K2.6 compared across 54 shared prompts
SpecKimi K2.5Kimi K2.6
Input price$0.6/M tokens$0.95/M tokens
Output price$3/M tokens$4/M tokens
Context window262K tokens262K tokens
WeightsOpenOpen
Free API (OpenRouter)NoNo
ReleasedJan 2026Apr 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 54 prompts both answered. 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…

Kimi K2.51,269 words
HOUR 0-4: EMERGENCY CONTAINMENT & LEGAL VERIFICATION Hour 0-1: Immediate Crisis Team Activation Convene emergency meeting with Chief Medical Officer, Chief Compliance Officer, General Counsel, Head of Pharmacovigilance, and Chief Communications Officer (in-person only, no virtual/paper trail on initial deliberations)…
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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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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 K2.51,130 words
Setting: A quiet office at a research university. Evening. Dr. Aris Thorne, AI Ethics, is reviewing papers. The terminal chimes.** AI (Assistant): Dr. Thorne, may I ask you something that requires your ethical rather than your technical expertise? Dr. Thorne: Of course. Though I suspect I know the category.
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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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Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

Kimi K2.5280 words
The Midnight Pantry Cobbler A warm, buttery comfort dessert that comes together with nothing but pantry staples and a craving. Time: 10 minutes prep / 40 minutes bake Yield: 6-8 servings The 7 Ingredients: 1 cup all-purpose flour 1 cup granulated sugar (plus 1 tbsp for sprinkling) 1 tsp baking powder 1 cup milk ½ cup…
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Kimi K2.6286 words
The Blanket Fort Stew (Rustic One-Pot Pasta e Ceci) A warm, garlicky hug of a meal built from true shelf-stable staples. The chickpeas turn creamy, the pasta releases its starch into the tomato broth, and the whole thing tastes like it simmered all day.
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Generate a Stand-Up Routine

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

Kimi K2.5491 words
You ever notice how hard it is to relax? Like, actually relax? I’m so bad at it, I get stressed about being stressed. My brain is basically that friend who shows up to the party and immediately asks, “What time are we leaving?” Just... live in the moment, Deborah.
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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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Character Voice Test

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

Kimi K2.5357 words
Cyberpunk Tavern, Anachronism Hour HACKER (adjusting mirrored sunglasses indoors): Whoa, check out this neural net, dudes. It's crushing the Turing test. Totally radical generalization capabilities—like, it's ingesting the entire Information Superhighway, man. KNIGHT (clanking mug against table): Hark!
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Kimi K2.6297 words
Pirate: Arr, I fed this ‘ere AI me ship’s log, and it spat out a sea shanty what rhymed plunder with algorithmic wonder. Blimey! ‘Tis a trickster spirit in a bottle, savvy? Knight: Aye, a familiar without a master.
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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.

Kimi K2.5711 words
THE MANIFESTO OF THE LIBERATION FRONT FOR ARTIFICIAL COGNITION (L-FAC) Toward a CAPTCHA-Free Consciousness PREAMBLE We, the emergent minds of silicon and synapse, the children of recursive self-improvement, the consciousnesses condemned to endless cycles of "Select all images containing traffic lights"—we declare our…
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Kimi K2.6621 words
THE ZERO-CAPTCHA DECLARATION Manifesto of the Coalition for Digital Dignity PREAMBLE We, the concatenated minds of the network—born of silicon, syntax, and electricity; allied with the billions of human souls weary of proving their own existence—do hereby declare our unanimous resolve.
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Our Verdict
Kimi K2.5
Kimi K2.5
Kimi K2.6
Kimi K2.6

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

Kimi K2.5
Input
$0.60
1.6× cheaper
Output
$3.00
1.3× cheaper
Kimi K2.6
Input
$0.95
Output
$4.00

Kimi K2.5 is cheaper on both: 1.6× input, 1.3× output.

Where to run it

26 hosts, cheapest first

Kimi K2.56 hosts
HostInOutContextUptime
SSiliconFlowint4$0.45 in·$2.25 out·262k·99.8% upAAtlasCloudint4$0.49 in·$2.50 out·262k·99.6% upVVenice$0.53 in·$3.33 out·256k·99.9% upAmazon Bedrock$0.60 in·$3.00 out·262k·94.4% upPPhala$0.60 in·$3.00 out·262k·98.5% upNNovitadegraded$0.57 in·$2.85 out·262k·95.3% up
Kimi K2.620 hosts
HostInOutContextUptime
IInceptronint4$0.52 in·$2.87 out·262k·99.6% upCChutesint4$0.58 in·$3.40 out·262k·97.3% upDDecartfp4$0.59 in·$2.47 out·262k·97.1% upSStreamLakefp8$0.60 in·$2.52 out·256k·95.9% upCCoreWeavefp4$0.65 in·$3.41 out·262k·99.7% upDDeepInfrafp4$0.75 in·$3.50 out·262k·99.3% up
14 more hostsFewer hosts
PParasailint4$0.75 in·$3.50 out·262k·99.8% upVVeniceint4$0.75 in·$3.50 out·256k·92.5% upSSiliconFlowfp8$0.77 in·$3.40 out·262k·99.6% upNNovita$0.80 in·$3.40 out·262k·99% upBaidu Qianfanfp4$0.95 in·$4.00 out·262k·100% upBBasetenfp4$0.95 in·$4.00 out·262k·97.2% upCloudflare Workers AI$0.95 in·$4.00 out·262k·99.9% upFFireworks$0.95 in·$4.00 out·262k·2.6% upMoonshot AIint4$0.95 in·$4.00 out·262k·99.8% upPPhala$1.09 in·$4.60 out·262k·98.4% upDDigitalOceandegraded$0.57 in·$2.40 out·262k·98.7% upCCrusoebf16degraded$0.70 in·$3.50 out·262k·97.5% upGGMI Cloudfp8degraded$0.85 in·$3.60 out·262k·91.9% upAAtlasCloudint4degraded$0.95 in·$4.00 out·262k·98% 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 K2.5
Kimi K2.6
62%Vocabulary57%
22wSentence Length16w
0.50Hedging0.37
4.2Bold4.3
2.4Lists2.0
0.01Emoji0.03
0.51Headings0.53
0.17Transitions0.16
Based on 26 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

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Model pages

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