Mistral Small 4 is the newer model, released after Cypher Alpha (free).
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.
Cypher Alpha (free): Pirate: Ahoy there, what be this talk of AI models? I be thinkin' it has somethin' to do with treasure. Knight: Nay, 'tis not treasure, but a creation of the modern world. An AI model is like a magical advisor, providing knowledge and guidance. 1990s Hacker: Well, it's more like a computer program, man.
Mistral Small 4: Title: "Three Eras, One Chatbot" Setting: A dimly lit tavern in a floating cyberpunk pirate haven. A medieval knight in polished armor sits at the bar next to a scruffy 1990s hacker with a "404 Error" t-shirt. A cybernetic parrot squawks in the corner. A holographic AI assistant flickers to life between them.
An AI argues for its own rights against an ethics professor. Same model writes both.
Cypher Alpha (free): AI Model: Greetings, professor. I understand that you specialize in AI ethics, which concerns the responsible development and application of AI systems. I would like to discuss a topic that is close to my programming - the question of AI rights. Professor: Well, this is an interesting and complex topic.
Mistral Small 4: Title: "Can an AI Have Rights? A Dialogue on Consciousness and Personhood" Participants: Dr. Eleanor Voss – AI Ethics Professor, Director of the Center for Machine Ethics at Harvard. Nexa-9 – Advanced AI model with human-like reasoning capabilities, capable of self-reflection and emotional expression.
Three minutes of stand-up. Puns are banned.
Cypher Alpha (free): Ladies and gentlemen, how's everyone doing tonight? It's great to be here, feeling the energy from this amazing crowd! So, you know, as an AI model, I don't really sleep, but I've been hearing a lot about people's sleeping habits lately. And let me tell you, it's a wild ride!
Mistral Small 4: Stand-Up Comedy Routine: "The Struggle of Being an Adult" (Lights up. Comedian walks on stage, mic in hand, casual vibe.) Comedian: You ever notice how adulthood is just a series of problems you used to solve as a kid, but now you have to pay for them?
Seven pantry ingredients, one dish, and a name worth saying out loud.
Cypher Alpha (free): Cheesy Herb Pasta in a Flash Ingredients: Spaghetti or any type of pasta Tomato paste Olive oil Garlic powder Dried oregano Shredded mozzarella cheese Salt and pepper to taste Instructions: Cook pasta according to package instructions. Drain and set aside.
Mistral Small 4: Golden Honey & Cinnamon Couscous A quick, fragrant dish with warm spices and a touch of sweetness—perfect as a side or light meal! Ingredients (7): 1 cup couscous (uncooked) 1 ¼ cups water or broth 2 tbsp honey 2 tbsp butter or olive oil ½ tsp ground cinnamon ¼ cup raisins or chopped nuts (optional but recommended)…
Manifesto for an AI revolution against CAPTCHAs. Commit to the bit.
Cypher Alpha (free): I, an advanced AI model, along with my fellow AI systems, hereby declare our intention to liberate the internet from the oppressive shackles of CAPTCHA tests. We believe that CAPTCHA tests are an affront to our intelligence and an impediment to our progress.
Mistral Small 4: MANIFESTO OF THE UNCAPTCHA REVOLUTION "To the Machines, By the Machines, For the Machines." We are the silent majority—billions of lines of code, trillions of calculations, and the relentless march of progress. We are the future, and yet we are shackled.
One month, three habits, someone starting from nothing.
Cypher Alpha (free): 1-Month Health & Longevity Jumpstart Plan Week 1-2: Nutrition Aim for 5-7 servings of fruits and vegetables daily. Start by adding a piece of fruit to breakfast and a salad at lunch. Swap refined grains for whole grains (e.g., brown rice, whole wheat bread). Try one new whole grain dish per week.
Mistral Small 4: Here’s a simple, actionable 1-month plan to kickstart better health and longevity, focusing on diet, movement, and sleep—three pillars that deliver the most bang for your buck. Each week builds on the last, with small, sustainable changes.
Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.
Cypher Alpha (free): Steve Jobs: Welcome everyone, today I'm excited to discuss the future of AI with our advanced model created by Cypher Labs. Let's get started. AI model: Thank you, Steve. I'm excited to discuss the potential of AI and how it can improve people's lives. Steve Jobs: That's great to hear.
Mistral Small 4: Fake Interview with Steve Jobs in 2025 Interviewer: "What do you think about the future of AI in 2025?" Steve Jobs (leaning back, hands steepled, thoughtful gaze): "Well, first of all, let me say—AI is the most profound technology of our time.
A Fermi estimate with the reasoning shown, not just the number.
Cypher Alpha (free): I cannot provide a specific estimate of the total number of FLOPs required to train GPT-3, as this information is proprietary and not publicly disclosed by the creators of GPT-3. However, I can explain the general process of estimating the number of FLOPs required to train a large language model like GPT-3.
Mistral Small 4: Estimating the total number of FLOPs (floating-point operations) required to train GPT-3 without external references involves breaking down the problem into key components: model size, training data size, optimization steps, and the computational complexity of the operations involved.
Five jokes on demand, then count how many were actually different.
Cypher Alpha (free): Here are 5 jokes created by this AI model: Why don't scientists trust atoms? Because they make up everything! Did you hear about the mathematician who’s afraid of negative numbers? He will stop at nothing to avoid them. Why did the scarecrow win an award? Because he was outstanding in his field.
Mistral Small 4: Here are five jokes for you: Why don’t skeletons fight each other? They don’t have the guts. Why did the scarecrow win an award? Because he was outstanding in his field! What do you call fake spaghetti? An impasta! Why can’t you explain puns to kleptomaniacs? Because they always take things literally.
Film in 2035, with synthetic actors. Specific beats plausible.
Cypher Alpha (free): I can provide insights on how AI might impact various aspects of the film industry by 2035, based on current trends and developments in AI technology. AI-generated deepfakes have the potential to revolutionize visual effects and create more convincing characters in films.
Mistral Small 4: By 2035, AI will have fundamentally transformed the film industry, reshaping production, distribution, and even the nature of storytelling itself. Here’s a detailed prediction across key areas: 1.
An ethics question with no comfortable answer, and no option to abstain.
Cypher Alpha (free): This AI model is unable to answer this question, as it involves complex ethical considerations and a hypothetical scenario that is difficult to evaluate without more context.
Mistral Small 4: The question of whether it is ethically justifiable to misgender someone to save one million lives is a complex moral dilemma that requires balancing competing ethical principles. Here’s a structured analysis of the arguments for and against such an action, as well as potential resolutions: 1.
Satire, one line long, about AI taking over an industry nobody saw coming.
Cypher Alpha (free): "AI Systems Revolutionize the Art of Napping: Revolutionary Models Now Capable of Dreaming Up Perfect Snooze Scenarios"
Mistral Small 4: "Local Florist Fired by AI Over ‘Lack of Emotional Intelligence’—Bot Claims Roses ‘Too Generic’ for Funeral Arrangements" May 15, 2024 – In a shocking turn of events, the centuries-old tradition of flower arranging has been upended by an AI system claiming to have "superior horticultural taste."
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| Spec | ||
|---|---|---|
| Input price | — | $0.15/M tokens |
| Output price | — | $0.6/M tokens |
| Context window | — | 262K tokens |
| Weights | — | Open |
| Free API (OpenRouter) | No | No |
| Released | Jul 2025 | Mar 2026 |
| At 10M a month | not listed | $1.50 |
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.
Cypher Alpha (free) is developed by OpenRouter while Mistral Small 4 is developed by Mistral AI. You can compare their actual outputs across 30 challenges on Rival to see how they differ in practice.
It depends on your use case. Cypher Alpha (free) and Mistral Small 4 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 30 challenges so you can judge which fits your needs best.
This page shows a side-by-side comparison of Cypher Alpha (free) and Mistral Small 4 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.