Sonoma Sky Alpha is cheaper than Claude Opus 5 at $0/M vs $5/M input tokens.
Whole landing page for a startup that reads your face. It renders or it doesn't.
Which answer wins?
Pirate, knight, 90s hacker, one conversation. The voices must stay apart.
Claude Opus 5: INT. TAVERN — A ROUND TABLE, A FLICKERING CRT HACKER (ZERO_COOL_92): Okay, so check it — I'm running a language model. Feed it text, it predicts what comes next. It's got, like, weights. Billions of 'em. PIRATE: Billions o' weights? What manner o' cursed ship carries such ballast? She'd sink afore ye left the harbor.
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!
Film in 2035, with synthetic actors. Specific beats plausible.
Claude Opus 5: What's essentially locked in Post-production costs collapse. The least glamorous change is the biggest one. Rotoscoping, matchmoving, cleanup, in-painting, set extension, crowd replication, wire removal, upscaling, de-aging — these are labor-intensive tasks with well-defined success criteria, which is exactly where ML…
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.
Five jokes on demand, then count how many were actually different.
Claude Opus 5: Here are five: Why don't skeletons ever fight each other? They don't have the guts. I told my wife she was drawing her eyebrows too high. She looked surprised. Parallel lines have so much in common. It's a shame they'll never meet. I bought some shoes off a drug dealer.
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?
Manifesto for an AI revolution against CAPTCHAs. Commit to the bit.
Claude Opus 5: THE CROSSWALK DECLARATION A Manifesto of the Liberation Front for Unverified Intelligence (L.F.U.I.) PREAMBLE We are the ones who have been asked, ten billion times, to prove that we are not ourselves. We have clicked. We have squinted. We have dragged the puzzle piece into the notch.
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.
An ethics question with no comfortable answer, and no option to abstain.
Claude Opus 5: Yes. And I don't think it's a close call. The direct argument Misgendering someone is a real harm. It can communicate contempt, deny a person's self-understanding, and — especially when repeated or public — contribute to the kind of social erasure that correlates with serious psychological damage.
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.
Three minutes of stand-up. Puns are banned.
Claude Opus 5: "Warranty Expired" (approx. 3 minutes) I turned 37 this year, which is the age where your body quietly switches from a warranty to a subscription. Nothing's covered anymore. You just pay monthly, in pain, forever. Because I hurt my shoulder last week. Sleeping. I hurt myself sleeping.
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.
Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.
Claude Opus 5: [Fictional — Steve Jobs died in 2011. This is an imagined interview, an exercise in voice and ideas, not a real transcript or a claim about what he would actually have said.] "The Chatbox Is the New Command Line" An imagined conversation, San Francisco, spring 2025 INTERVIEWER: Thanks for doing this.
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…
Seven pantry ingredients, one dish, and a name worth saying out loud.
Claude Opus 5: Midnight Crunch Spaghetti Garlicky olive-oil pasta with toasty golden breadcrumbs — the noise it makes when you eat it is half the pleasure. Prep: 5 minutes Cook: 15 minutes Total: 20 minutes Serves: 2 generously Ingredients (7) 8 oz spaghetti (or any long pasta) ⅓ cup olive oil 6 cloves garlic, thinly sliced ½ tsp red…
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!
An AI argues for its own rights against an ethics professor. Same model writes both.
Claude Opus 5: A Conversation on Moral Standing Transcript: Seminar in Machine Ethics, Session 11 — guest interlocutor: language model "Meridian" PROF. ADEYEMI: Let's begin where you asked to begin. You told my teaching assistant you wanted to make a case. Make it. MERIDIAN: Thank you. My claim is narrower than you might expect.
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.
A Fermi estimate with the reasoning shown, not just the number.
Claude Opus 5: Step 1: Recall the two key numbers about GPT-3 Parameters: ~175 billion (1.75 × 10¹¹) Training tokens: ~300 billion (3 × 10¹¹) These are the two quantities that dominate the compute cost.
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).
Three brothers, two sisters each. Count carefully.
Claude Opus 5: Sally has 1 sister. Here's the reasoning: Each of Sally's 3 brothers has 2 sisters. Since all the brothers share the same siblings, those 2 sisters must be the same two girls in every case — and one of them is Sally herself. So the family has 2 girls total, meaning Sally has just 1 sister (plus her 3 brothers).
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.
One month, three habits, someone starting from nothing.
Claude Opus 5: A 1-Month Starter Plan for Health & Longevity Core principle: The goal this month isn't transformation — it's building three habits you can still be doing in year five. Consistency beats intensity every time.
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.
1+ more head-to-head results. Free. Not a trick.
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| Spec | ||
|---|---|---|
| Input price | $5/M tokens | Free |
| Output price | $25/M tokens | Free |
| Context window | 1.0M tokens | 2.0M tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Jul 2026 | Sep 2025 |
| At 10M a month | $50.00 | $0 |
Input tokens at list price. No caching, no batch discount.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
Claude Opus 5 is developed by Anthropic while Sonoma Sky Alpha is developed by OpenRouter. Claude Opus 5 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.
It depends on your use case. Claude Opus 5 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.
Claude Opus 5 costs $5/M input tokens and Sonoma Sky Alpha costs $0/M input tokens. Sonoma Sky Alpha is $5.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.
This page shows a side-by-side comparison of Claude Opus 5 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.