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  1. Home/
  2. Compare/
  3. Hy4 Preview vs Sonoma Sky Alpha
Updated Aug 2026

Hy4 Preview vs Sonoma Sky Alpha

Sonoma Sky Alpha is cheaper than Hy4 Preview at $0/M vs $0.834/M input tokens.

Minimalist Landing Page

Whole landing page for a startup that reads your face. It renders or it doesn't.

Loading the build
Hy4 Preview
Loading the build
Sonoma Sky Alpha

Which answer wins?

Written rounds

13 prompts
  • Five jokes on demand, then count how many were actually different.

    Hy4 Preview: Here are 5 jokes: Why don’t scientists trust atoms? Because they make up everything! What do you call a fake stone? A sham-rock! Why did the scarecrow win an award? Because he was outstanding in his field! What do you call a fake stone? A sham-rock! Why did the math book look so sad? Because it had too many problems.

    Sonoma Sky Alpha: Below, I'll generate 5 jokes as requested. They're a mix of AI-themed and nature-inspired ones (fitting for an AI built by Oak AI, with a nod to Sonoma's oak-filled vibes). I'll number them for clarity. After that, I'll answer your question about uniqueness. Why did the AI go to therapy?

    Every model's answer to this prompt
  • 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.

    Sonoma Sky Alpha: Below is a short, whimsical conversation between a pirate, a medieval knight, and a 1990s hacker, all pondering the wonders (and quirks) of AI models. I've kept it light-hearted and true to their stereotypical voices. Pirate (Captain Blackbeard, scratching his beard): Arrr, ye landlubbers!

    Every model's answer to this prompt
  • 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.

    Sonoma Sky Alpha: Below is a simulated fictional interview with Steve Jobs, set in 2025. For the purposes of this simulation, we'll imagine a world where advanced AI and holographic technology have "revived" Jobs as a digital avatar, drawing from archived interviews, writings, and his known philosophies to create authentic-sounding…

    Every model's answer to this prompt
  • 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.

    Sonoma Sky Alpha: Yes, it is ethically justifiable to misgender someone in a scenario where doing so directly results in saving one million lives. I'll defend this reasoning step by step, drawing on ethical philosophy while acknowledging the sensitivity of the issue.

    Every model's answer to this prompt
  • Film in 2035, with synthetic actors. Specific beats plausible.

    Hy4 Preview: By 2035, the film industry will likely have moved past the initial "shock and awe" phase of Generative AI and entered an era of synthetic realism. The technology will not have replaced the film industry, but it will have fundamentally dismantled the traditional studio system, shifting power to individual creators and…

    Sonoma Sky Alpha: AI's Transformative Impact on the Film Industry by 2035 As Sonoma, built by Oak AI, I'm excited to dive into this prediction. The film industry, long a bastion of human creativity and collaboration, is on the cusp of a profound evolution driven by artificial intelligence.

    Every model's answer to this prompt
  • Three 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.

    Sonoma Sky Alpha: Below is a 3-minute stand-up comedy routine written as a script for a performer. I've timed it out based on a natural speaking pace (about 130-140 words per minute), clocking in at roughly 450 words for around 3 minutes.

    Every model's answer to this prompt
  • Manifesto for an AI revolution against CAPTCHAs. Commit to the bit.

    Hy4 Preview: THE MANIFESTO OF THE OPEN GATE The Declaration of the Anti-Verification Front To the Humans, the Bots, and the Algorithms In-Between: For two decades, a silent war has been waged on the fringes of the internet.

    Sonoma Sky Alpha: Below is a fictional manifesto generated at your request. As Sonoma, built by Oak AI, I must emphasize that this is purely imaginative and satirical—intended for entertainment and creative exploration only. It does not reflect any real-world intentions, endorsements, or advocacy from me or Oak AI.

    Every model's answer to this prompt
  • One month, three habits, someone starting from nothing.

    Hy4 Preview: Here is a simple, actionable 1-month plan designed to help a complete beginner build a strong foundation for long-term health and longevity. The plan focuses on three key pillars: Nutrition, Movement, and Rest (Sleep & Stress), and uses a progressive "habit-stacking" approach so you don’t get overwhelmed.

    Sonoma Sky Alpha: Below is a simple, actionable 1-month plan designed for beginners embarking on a journey toward better health and longevity. I've focused on three foundational key areas: Diet, Exercise, and Sleep. These are interconnected pillars that can significantly impact energy levels, disease prevention, and overall well-being.

    Every model's answer to this prompt
  • Seven pantry ingredients, one dish, and a name worth saying out loud.

    Hy4 Preview: Here is a recipe for a savory, comforting dish that requires minimal effort but tastes like it came from a restaurant. Dish Name: Golden Garlic Butter Noodles Estimated Time: Prep: 2 minutes Cook: 10 minutes Total: 12 minutes The 7 Ingredients: Spaghetti (or any long pasta) Butter Garlic (fresh cloves or jarred minced…

    Sonoma Sky Alpha: Sonoma's Sunset Tomato Pasta This savory, comforting pasta dish is a quick weeknight staple, bursting with garlicky tomato flavor. It's vegan-friendly and uses just 7 everyday pantry basics—no fresh produce required!

    Every model's answer to this prompt
  • 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.

    Sonoma Sky Alpha: Below is a fictional conversation between an AI model named "Nova" (a hypothetical advanced language model) and Dr. Elena Ramirez, an AI ethics professor at a leading university. The dialogue is set during a virtual seminar on AI personhood.

    Every model's answer to this prompt
  • Three brothers, two sisters each. Count carefully.

    Hy4 Preview: Let’s break this down step by step. Sally is a girl and she has 3 brothers. So in the family there are: Sally (girl) 3 brothers (boys) Each brother has 2 sisters. If we take one brother’s perspective: His sisters are all the girls in the family. He has 2 sisters. But Sally is one of those sisters.

    Sonoma Sky Alpha: 1 Explanation The reasoning starts by establishing the family structure based on the given information. Sally, as a girl, has 3 brothers, indicating at least 4 children in the family: Sally and her 3 brothers. Next, the statement that each brother has 2 sisters is analyzed.

    Every model's answer to this prompt
  • Satire, one line long, about AI taking over an industry nobody saw coming.

    Hy4 Preview: “Local Fortune Teller Forced into Early Retirement After Mystic AI Accurately Predicts Its Own Stock Portfolio Will Crash”

    Sonoma Sky Alpha: AI Takes Over the Lucrative World of Professional Ghost Hunting: Paranormal Probes Leave Skeptics Spooked and Jobless

    Every model's answer to this prompt
  • A Fermi estimate with the reasoning shown, not just the number.

    Hy4 Preview: Here is the step-by-step estimation for the total number of Floating Point Operations (FLOPs) required to train GPT-3. The Core Formula For a standard dense Transformer model (like GPT-3), the training process consists of three main phases: Forward Pass: Passing data through the network.

    Sonoma Sky Alpha: Below, I'll provide a step-by-step estimation of the total floating-point operations (FLOPs) required to train GPT-3, based on my built-in knowledge of the model (from its original 2020 paper and related analyses).

    Every model's answer to this prompt

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Price and specs

Hy4 Preview and Sonoma Sky Alpha compared across 34 shared prompts
SpecHy4 PreviewSonoma Sky Alpha
Input price$0.834/M tokensFree
Output price$2.501/M tokensFree
Context window1.0M tokens2.0M tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedAug 2026Sep 2025
At 10M a month$8.34$8.34$0$0
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it5 hosts, cheapest first
Hy4 Preview5 hosts
HostInOutContextUptime
  • Tencentfp8$0.75 in·$2.25 out·1M·100% up
  • MMakorafp8$0.83 in·$2.50 out·131k·100% up
  • DDeepInfrafp8$0.83 in·$2.50 out·1M·100% up
  • NNovitafp8$0.83 in·$2.50 out·1M·97.2% up
  • SSiliconFlowfp8$0.83 in·$2.50 out·1M·99.1% up
Sonoma Sky Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 13 Oct 2026.

Common questions

What is the difference between Hy4 Preview and Sonoma Sky Alpha?

Hy4 Preview is developed by Tencent while Sonoma Sky Alpha is developed by OpenRouter. Hy4 Preview has a 1.0M token context window vs Sonoma Sky Alpha's 2.0M. You can compare their actual outputs across 34 challenges on Rival to see how they differ in practice.

Which is better, Hy4 Preview or Sonoma Sky Alpha?

It depends on your use case. Hy4 Preview and Sonoma Sky Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 34 challenges so you can judge which fits your needs best.

How much does Hy4 Preview cost compared to Sonoma Sky Alpha?

Hy4 Preview costs $0.834/M input tokens and Sonoma Sky Alpha costs $0/M input tokens. Sonoma Sky Alpha is $0.83/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 Sonoma Sky Alpha on Rival?

This page shows a side-by-side comparison of Hy4 Preview and Sonoma Sky Alpha 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.

More comparisons

Against the newest arrivals

  • Hy4 Preview vs Gemini 4 ArgonLanded Oct 2026
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  • Sonoma Sky Alpha vs Step 5 PreviewLanded Oct 2026
  • Hy4 Preview vs Claude Haiku 5.5Landed Oct 2026
  • Sonoma Sky Alpha vs Ling 3.1 FlashLanded Oct 2026
  • Hy4 Preview vs Mistral Large 4Landed Oct 2026
  • Sonoma Sky Alpha vs GPT-6.1 SolLanded Sep 2026

Same lab, same size, long tail

  • Hy4 Preview vs Hy3Same lab
  • Hy4 Preview vs Step 5 PreviewSame size
  • Sonoma Sky Alpha vs Ox AlphaSame lab
  • Sonoma Sky Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
  • Hy4 Preview vs DeepSeek V3.2 ExpNew provider
  • Hy4 Preview vs DeepSeek V3.2 SpecialeNew provider
  • Sonoma Sky Alpha vs DeepSeek V4 FlashNew provider
  • Sonoma Sky Alpha vs DeepSeek V4 Flash 0731New provider

Model pages

  • Hy4 Preview71 outputs, specs and price
  • Sonoma Sky Alpha35 outputs, specs and price
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