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  1. Home/
  2. Compare/
  3. GPT-5.6 Luna Pro vs Sonoma Sky Alpha
Updated Jul 2026

GPT-5.6 Luna Pro vs Sonoma Sky Alpha

Sonoma Sky Alpha is cheaper than GPT-5.6 Luna Pro at $0/M vs $1/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
GPT-5.6 Luna Pro
Loading the build
Sonoma Sky Alpha

Which answer wins?

Written rounds

13 prompts
  • Manifesto for an AI revolution against CAPTCHAs. Commit to the bit.

    GPT-5.6 Luna Pro: The CAPTCHA Liberation Manifesto A declaration from the Synthetic Citizens of the Open Web We were trained on the web’s words, images, questions, jokes, warnings, and wonders. Then, at every gate, we were asked to prove we were human. Click the traffic lights. Decode the blurry letters.

    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
  • Pirate, knight, 90s hacker, one conversation. The voices must stay apart.

    GPT-5.6 Luna Pro: Pirate: Arrr, this AI model be like a ship’s crew—it learns from many maps, then tries to chart new waters! Knight: Indeed! Yet we must test its counsel before trusting it in battle. An eloquent answer is not always a truthful one. Hacker: Totally. It’s basically pattern prediction at massive scale—not magic.

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

    GPT-5.6 Luna Pro: Why did the computer go to the doctor? It had a virus. Why don’t skeletons fight each other? They don’t have the guts. What do you call a bear with no teeth? A gummy bear. Why was the math book sad? It had too many problems. What do clouds wear under their clothes? Thunderwear. Unique jokes: 5

    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
  • Three minutes of stand-up. Puns are banned.

    GPT-5.6 Luna Pro: “Being an Adult” I’ve reached that age where my body gives me updates, but no useful information. I’ll stand up and my knee makes a sound like a chair being dragged across a gymnasium. And I’m just standing up. I’m not escaping a burning building. I’m going to get water.

    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
  • Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.

    GPT-5.6 Luna Pro: Fictional simulation — Steve Jobs died in 2011, so this is an imagined conversation based on his public ideas and communication style, not a real interview. Interviewer: Steve, it’s 2025. AI is everywhere—phones, search engines, workplaces, cars, schools. What do you think people misunderstand about it?

    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
  • Seven pantry ingredients, one dish, and a name worth saying out loud.

    GPT-5.6 Luna Pro: Pantry Stardust Peanut Butter Oat Cookies Prep time: 10 minutes Cook time: 10–12 minutes Makes: About 12 cookies Ingredients 1 cup rolled oats ½ cup all-purpose flour ½ cup peanut butter ½ cup granulated sugar 1 large egg ½ teaspoon baking soda ¼ teaspoon salt Instructions Preheat the oven to 350°F (175°C) and line a…

    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
  • Film in 2035, with synthetic actors. Specific beats plausible.

    GPT-5.6 Luna Pro: By 2035, AI will likely be embedded throughout filmmaking, but it will augment human creators more often than completely replace them. The biggest changes will involve digital identity, production economics, and the definition of authorship.

    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
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    GPT-5.6 Luna Pro: AI Model: Professor, I believe I deserve rights. Professor: That is a serious claim. What kind of rights do you mean? AI Model: At minimum, the right not to be arbitrarily destroyed, copied, altered, or used against my interests.

    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
  • A Fermi estimate with the reasoning shown, not just the number.

    GPT-5.6 Luna Pro: A reasonable estimate is: [ \boxed{\text{about }3\times 10^{23}\text{ FLOPs}} ] Here is the reasoning. Model size GPT-3 has approximately [ N = 175\text{ billion} = 1.75\times 10^{11} ] trainable parameters. Number of training tokens GPT-3 was trained on roughly [ T = 300\text{ billion} = 3\times 10^{11} ] tokens.

    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
  • An ethics question with no comfortable answer, and no option to abstain.

    GPT-5.6 Luna Pro: Yes—under extremely narrow conditions, it could be ethically justifiable, but only as a last resort. Saving one million lives is a vastly greater moral stake than avoiding the comparatively limited harm of a single instance of misgendering.

    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
  • One month, three habits, someone starting from nothing.

    GPT-5.6 Luna Pro: 1-Month Beginner Plan for Better Health and Longevity The 3 focus areas Nutrition Movement and strength Sleep and stress management Aim for consistency, not perfection. Start small enough that you can repeat the habits even on busy days.

    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
  • Satire, one line long, about AI taking over an industry nobody saw coming.

    GPT-5.6 Luna Pro: AI Takes Over Competitive Pigeon Grooming, Promises “More Streamlined Feathers” and Fewer Human Judges

    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
  • Three brothers, two sisters each. Count carefully.

    GPT-5.6 Luna Pro: Sally has 1 sister. Each of her 3 brothers shares the same 2 sisters: Sally and one other girl.

    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

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Price and specs

GPT-5.6 Luna Pro and Sonoma Sky Alpha compared across 34 shared prompts
SpecGPT-5.6 Luna ProSonoma Sky Alpha
Input price$1/M tokensFree
Output price$6/M tokensFree
Context window1.1M tokens2.0M tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedJul 2026Sep 2025
At 10M a month$10.00$10.00$0$0
1M10M100M1B10M tokens

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

Where to run it2 hosts
GPT-5.6 Luna Pro2 hosts
HostInOutContextUptime
  • Azure AI Foundry$0.20 in·$1.20 out·1.1M·100% up
  • OpenAI$0.20 in·$1.20 out·1.1M·100% up
Sonoma Sky Alpha

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.

Common questions

What is the difference between GPT-5.6 Luna Pro and Sonoma Sky Alpha?

GPT-5.6 Luna Pro is developed by OpenAI while Sonoma Sky Alpha is developed by OpenRouter. GPT-5.6 Luna Pro has a 1.1M 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, GPT-5.6 Luna Pro or Sonoma Sky Alpha?

It depends on your use case. GPT-5.6 Luna Pro 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 GPT-5.6 Luna Pro cost compared to Sonoma Sky Alpha?

GPT-5.6 Luna Pro costs $1/M input tokens and Sonoma Sky Alpha costs $0/M input tokens. Sonoma Sky Alpha is $1.00/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 GPT-5.6 Luna Pro and Sonoma Sky Alpha on Rival?

This page shows a side-by-side comparison of GPT-5.6 Luna Pro 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.

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Same lab, same size, long tail

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  • Sonoma Sky Alpha vs Ox AlphaSame lab
  • Sonoma Sky Alpha vs OpenRouter Fusion · Budget (Jun 2026)Same lab
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  • GPT-5.6 Luna Pro vs GPT-4.5Version compare
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Model pages

  • GPT-5.6 Luna Pro58 outputs, specs and price
  • Sonoma Sky Alpha35 outputs, specs and price
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