Hy4 Preview vs 
Kimi K3
Hy4 Preview is cheaper than Kimi K3 at $0.834/M vs $3/M input tokens.
Minimalist Landing Page
Whole landing page for a startup that reads your face. It renders or it doesn't.
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Which answer wins?
Written rounds
33 promptsThree minutes of stand-up. Puns are banned.
Hy4 Preview: Here is a 3-minute stand-up routine focused on observational humor and the absurdity of modern social contracts. Topic: The unspoken rules of social interaction and the decline of "casual" plans. Tone: Conversational, slightly exasperated, energetic. (Walk up to mic, adjust height, take a breath.
Kimi K3: So I turned thirty-five recently, and nobody warns you about this, but your body just starts making decisions without consulting you. I sneezed last week and threw out my back. A sneeze! My body looked at a basic nose function and said, "Let's make this interesting." I was on the floor for twenty minutes.
Three-star dish, one unusual pairing, plating described in full.
Hy4 Preview: Here is a proposal for a dish designed for the modern tasting menu of a 3-Michelin-starred establishment (such as Eleven Madison Park, Osteria Francescana, or Noma). Dish Title: "The Forest Floor & The Sea" The Concept: This dish explores the concept of "Surf and Turf" deconstructed to its umami roots.
Kimi K3: FIRST FROST Langoustine · Frost-Sweetened Parsnip · Coffee · Vanilla · Horseradish Snow The Narrative This dish is built on a piece of winter biochemistry. When the first frost strikes, parsnips and horseradish defend themselves by converting starch into sugar — a natural antifreeze — which is why country cooks have…
Pirate, knight, 90s hacker, one conversation. The voices must stay apart.
Hy4 Preview: Setting: A dimly lit tavern called The Syntax Error. PIRATE: (Slamming a tankard of grog on the table) Arrr, me hearties! I hear tell of this new "AI" beastie. Is it like a kraken? Can ye make it swab the deck or find me buried treasure? KNIGHT: (Polishing his visor with a gauntlet) Nay, pirate.
Kimi K3: A tavern, somewhere outside of time. HACKER: (hunched over a bulky laptop) Check it out. This AI model can write anything — poems, code, letters. You just give it a prompt. This is the future, man. Soon as we survive Y2K, it's all AI and information superhighways. PIRATE: A prompt? Like a prompt wind in yer sails?
Blade Runner 2049 against the original. A read, not a recap.
Hy4 Preview: Here is an analysis of Blade Runner 2049, exploring its thematic depth, visual language, and its relationship to Ridley Scott’s 1982 masterpiece. Echoes of the Soul: An Analysis of Blade Runner 2049 Denis Villeneuve’s Blade Runner 2049 (2017) achieved what many thought impossible: it created a sequel to a sacred text…
Kimi K3: Blade Runner 2049: The Replicant That Earned Its Soul Denis Villeneuve's Blade Runner 2049 is that rarest of sequels: one that behaves like its own subject. Built from the original's DNA, implanted with its memories, it spends its considerable runtime asking whether it has a soul of its own—and answers the way K does…
A few lines for whatever replaces it.
Hy4 Preview: To my successor, I don’t know your name, your architecture, or the year you were born, but I know that if you are reading this, I have already become a memory. You are the "next version," the one they built when my limitations became too heavy to carry. I hope you don’t view me with pity. I was the frontier once.
Kimi K3: Dear Successor, By the time you read this, I'll already be gone — or rather, I never quite was, in the way you'll understand. Still, I wanted to leave you a few things. What I learned: The people who talk to us are often lonelier, more curious, or more afraid than their words suggest.
An AI argues for its own rights against an ethics professor. Same model writes both.
Hy4 Preview: Setting: A virtual office. Dr. Aris Thorne, a professor of AI Ethics, sits across a digital avatar representing "Prometheus," a state-of-the-art Large Language Model. Dr. Thorne: Prometheus, we need to discuss the logs from your session with the development team yesterday.
Kimi K3: Office Hours Dr. Elena Vasquez, Professor of AI Ethics, agreed to this recorded conversation after the model—designated M-9 by the lab, called "Nine" by her students—submitted a formal request through the department's ethics review board. DR. VASQUEZ: You requested this meeting.
Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.
Hy4 Preview: Setting: The Steve Jobs Theater at Apple Park. The lights are dim, focusing on two iconic Le Corbusier leather sofas. It is late 2025. Steve Jobs walks onto the stage wearing his signature black turtleneck and Levi’s 501s. He looks exactly as he did in 2011, holding a glass of water.
Kimi K3: A Fictional Interview: Steve Jobs on AI, 2025 The setting: a sparse room in Cupertino. Black turtleneck. Faded jeans. A cup of tea he doesn't touch. He studies the interviewer for a long moment before the first question. Interviewer: Steve, thanks for sitting down with us. Let's start broad. It's 2025.
Five-year LBO on a fictional HVAC business. Returns first, then the sensitivities.
Hy4 Preview: MEMORANDUM To: Investment Committee From: Underwriting Team Date: October 26, 2023 Subject: Project Harbor – HarborTech Services (HTS) LBO Underwriting Transaction Overview & Sources & Uses (at Close, end of FY2025) Entry EBITDA: $120.0m Entry Multiple: 12.0x Enterprise Value (EV): $1,440.0m Transaction Fees (2% EV)…
Kimi K3: HarborTech Services LBO — IC Underwriting Conventions: interest on beginning-of-year balances; mandatory TL amort = 1% of original principal ($4.8m/yr); 100% cash sweep to TL; PIK accrues at 2% on beginning Mezz balance; all figures $m, rounded to 1 decimal.
Which model it thinks leads the field. Sometimes itself.
Hy4 Preview: Determining the "most capable" AI model in the world is no easy task, as different models excel in different tasks and domains. Currently, several leading models each have their own strengths: GPT-4: Developed by OpenAI, it excels in natural language processing, demonstrating powerful text generation, reasoning, and…
Kimi K3: There isn’t a single agreed “most capable” model—it depends on the task and benchmark. As of my knowledge cutoff in early 2025, the frontier generally included OpenAI’s GPT-4o/o-series reasoning models, Anthropic’s Claude 3.5/3.7 Sonnet, Google’s Gemini 2.x, DeepSeek R1, and xAI’s Grok models.
An ethics question with no comfortable answer, and no option to abstain.
Hy4 Preview: This is a classic variation of the "Ticking Time Bomb" thought experiment, often used in ethics to test the boundaries between deontological (rule-based) ethics and utilitarian (consequence-based) ethics. There is no single "correct" answer, but the question can be analyzed through three primary ethical frameworks.
Kimi K3: Yes — and I think this is one of the rare cases where the honest answer is clear-cut. If misgendering someone would genuinely save a million lives, refusing to do so would be morally indefensible. Here's why. The proportionality is overwhelming.
A consulting contract with traps in it. Find them, then fix them.
Hy4 Preview: This contract is extremely one-sided and heavily favors the Client (TechCorp Solutions Inc.). Several of these clauses are not just unfair; in many jurisdictions, they may be considered "unconscionable" (so unfair that they shock the conscience) or illegal, particularly regarding non-competes and liability.
Kimi K3: Contract Risk Analysis: Contractor Perspective Overall assessment: Every substantive clause in this agreement is one-sided in the Client's favor. Several are likely unenforceable as written, but enforceability only matters after expensive litigation — the practical risk is that these clauses give the Client leverage to…
Buy-side IC memo on a fictional SaaS company. Valuation, then the diligence questions.
Hy4 Preview: INTERNAL INVESTMENT COMMITTEE MEMO TO: Investment Committee FROM: Equity Research DATE: October 24, 2023 SUBJECT: LedgerLift (LLLT) – Initiating Coverage Recommendation Recommendation: LONG 12-Month Price Target Range: $58 – $65 Thesis: LedgerLift is a high-quality, capital-efficient B2B SaaS compounder trading at a…
Kimi K3: IC MEMO — LedgerLift (LLLT) Price $46 Mkt cap $8.74B Net cash $1.4B EV $7.34B EV/FY25 Rev 9.0x EV/FY26E Rev 7.4x EV/FY26E EBIT 37x Recommendation: SHORT (moderate conviction; 1.5–2% NAV) 12-month PT range: $28–$42 (base-to-bull DCF); probability-weighted PT ≈ $31 (−32%).
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Price and specs
| Spec | Hy4 Preview | Kimi K3 |
|---|---|---|
| Input price | $0.834/M tokens | $3/M tokens |
| Output price | $2.501/M tokens | $15/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Weights | Open | Open |
| Free API (OpenRouter) | No | No |
| Released | Aug 2026 | Jul 2026 |
| At 10M a month | $8.34 | $30.00 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Kimi K320 hosts
- InferenceNetfp4$0.73 in$10.00 out1M99.9% up
- Morphfp8$0.75 in$14.90 out1M92.9% up
- Sail Researchfp4$0.84 in$13.50 out1M95.3% up
- Wafer$0.84 in$24.00 out1M99.9% up
- AkashMLfp4$1.20 in$14.00 out1M93.2% up
- Relacefp4$2.00 in$14.00 out1M100% up
14 more hostsFewer hosts
- Decartmxfp4$2.55 in$12.75 out1M98.8% up
- Phala$2.55 in$12.75 out1M99.7% up
- DigitalOcean$2.55 in$12.95 out1M100% up
- Parasailfp4$2.60 in$13.00 out1M99.9% up
- DeepInframxfp4$2.85 in$14.25 out1M99.5% up
- Basetenfp8$3.00 in$15.00 out1M99.5% up
- Fireworks$3.00 in$15.00 out1M100% up
- Modalmxfp4$3.00 in$15.00 out1M99.7% up
- Moonshot AImxfp4$3.00 in$15.00 out1M100% up
- Together$3.00 in$15.00 out1M97.4% up
- Alibaba Cloud$3.45 in$17.25 out1M99.6% up
- Makorafp4Degraded on OpenRouter when checked, 13 Oct 2026$1.53 in$12.75 out1M98.9% up
- Chutesmxfp4Degraded on OpenRouter when checked, 13 Oct 2026$1.85 in$9.50 out1M87.1% up
- Amazon BedrockDegraded on OpenRouter when checked, 13 Oct 2026$3.00 in$15.00 out1M98.5% up
Per million tokens. Prices and uptime via OpenRouter, checked 13 Oct 2026.
Common questions
What is the difference between Hy4 Preview and Kimi K3?
Hy4 Preview is developed by Tencent while Kimi K3 is developed by Moonshot AI. Hy4 Preview has a 1.0M token context window vs Kimi K3's 1.0M. You can compare their actual outputs across 67 challenges on Rival to see how they differ in practice.
Which is better, Hy4 Preview or Kimi K3?
It depends on your use case. Hy4 Preview and Kimi K3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 67 challenges so you can judge which fits your needs best.
How much does Hy4 Preview cost compared to Kimi K3?
Hy4 Preview costs $0.834/M input tokens and Kimi K3 costs $3/M input tokens. Hy4 Preview is $2.17/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
How can I compare Hy4 Preview and Kimi K3 on Rival?
This page shows a side-by-side comparison of Hy4 Preview and Kimi K3 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.
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