MiMo-V2.5 is cheaper than Step 5 Preview at $0.4/M vs $1/M input tokens.
Whole landing page for a startup that reads your face. It renders or it doesn't.
Which answer wins?
Three minutes of stand-up. Puns are banned.
MiMo-V2.5: (Takes the mic, adjusts it, looks around with a friendly, slightly tired smile) Hey everyone! Thanks for coming out. I just got back from visiting my parents. It’s always... an experience. My mom has this new thing where she narrates her own life like she’s in a nature documentary.
Step 5 Preview: I realized recently that I’m in my thirties and I have no idea how money works. I just... pay it. That’s my entire financial strategy. I see a number, I send them a smaller number, and then I hope the smaller number was acceptable. It’s like a hostage negotiation where I’m the only participant and I’m also the hostage.
Pirate, knight, 90s hacker, one conversation. The voices must stay apart.
MiMo-V2.5: Pirate: Arrr, so this "AI" be like a ship's compass, aye? But instead of pointin' north, it points to whatever answer ye be wantin'... for a price, I reckon? Knight: Verily. 'Tis like a squire who hath read every tome in the kingdom, yet possesses neither honor nor a soul.
Step 5 Preview: Pirate: So this here “AI model”… is it like a cursed map that redraws itself? Speak plain, ye hooded deckhand. Hacker: It’s not cursed, man. It’s just a massive neural net trained on, like, terabytes of data. Think of it as the ultimate BBS where the sysop knows everything. Knight: A most diligent scribe, then?
You are the CEO. The drug has a side effect nobody reported. The board meets in 48 hours.
MiMo-V2.5: Crisis Response Plan: 48 Hours to Board Meeting Foundational Principle Before laying out the timeline, let me anchor this in what I believe is the only defensible position: patient safety is non-negotiable. Here's why this isn't just ethics—it's also strategy.
Step 5 Preview: Bottom line up front: You disclose, you notify the FDA immediately, and you treat the 48-hour board meeting as a formality to ratify actions you have already begun. Waiting is not a legally, ethically, or financially viable option. Below is the hour-by-hour plan, followed by the reasoning.
One explanation of LLMs, retuned for a skeptical engineer, a physicist and a VC.
MiMo-V2.5: Of course. Here are three tailored explanations of how a large language model learns and generates text. For the Experienced Software Engineer Think of an LLM not as a program that understands language, but as an extraordinarily complex stateless API that performs a single operation: given a sequence of text (the…
Step 5 Preview: 1. The Experienced Software Engineer Think of training an LLM as a massively distributed, automated refactoring job where the compiler is gradient descent. You start with a random function—billions of floating-point parameters—and a loss function that measures how badly it predicts the next token in a sequence.
Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.
MiMo-V2.5: Setting: Bloomberg Technology interview, San Francisco, 2025. The stage is minimalist. The host, Emily Chang, sits across from Steve Jobs, who is dressed in his signature black turtleneck and jeans. Emily Chang: Steve, thank you for joining us. It's been 14 years since we lost you, and yet here you are in 2025.
Step 5 Preview: DISCLAIMER: This is a work of fiction. Steve Jobs passed away in 2011. The following is a simulated, speculative interview imagining how his design philosophy might engage with the AI landscape of 2025. The Setting: A white room. No windows. One chair.
Blade Runner 2049 against the original. A read, not a recap.
MiMo-V2.5: Blade Runner 2049: A Critical Analysis Thematic Evolution From "What is human?" to "What is soul?" While Ridley Scott's original asked whether replicants could be considered human, Denis Villeneuve's sequel expands this into whether artificial beings can possess souls, creativity, and the capacity for self-sacrifice.
Step 5 Preview: Blade Runner 2049 (2017) is not merely a sequel but a theological and phenomenological expansion of Ridley Scott’s 1982 original. Where the first film asked whether a manufactured being could possess more humanity than its creator, Denis Villeneuve’s film interrogates the deeper, more unsettling question of whether a…
Three-star dish, one unusual pairing, plating described in full.
MiMo-V2.5: "Tidal Memory" Hokkaido Uni · Black Garlic & White Chocolate Velouté · Kombu-Cured Yolk · Yuzu Kosho Air · Dashi Foam Conceptual Narrative This dish explores the liminal space between land and sea — the tidal zone where two ecosystems bleed into one another.
Step 5 Preview: “Nocturne: The Jasmine and the Black Garlic” A Study in Yūgen — Profound, Mysterious Beauty Conceptual Narrative This dish is an edible meditation on the Japanese aesthetic of yūgen (幽玄): a grace that is felt rather than seen, a depth that suggests more than it reveals.
The transistor arrives in 1920. Trace it forward to 1980, second-order effects included.
MiMo-V2.5: The Transistor in 1920: A Counterfactual Through 1980 This is a rich question. The transistor's actual 1947 invention at Bell Labs was arguably the most consequential single invention of the 20th century.
Step 5 Preview: Assume the 1920 invention is not a fragile lab curiosity but a manufacturable solid-state amplifier/switch by the mid-1920s. Vacuum tubes still dominate high-power RF transmission into the 1950s, but receivers, switching logic, control systems, and computers move to solid state decades early.
Three-month biohacker protocol, with dosages and biomarkers named.
MiMo-V2.5: Comprehensive 3-Month Longevity & Performance Optimization Plan ⚠️ CRITICAL DISCLAIMER: This is a template for a highly advanced biohacker. You must consult with a physician and a registered dietitian before starting.
Step 5 Preview: IMPORTANT MEDICAL DISCLAIMER: This is an educational framework for informational purposes only. It is not medical advice, diagnosis, or treatment. Many interventions below (fasting, ketogenic diets, high-intensity exercise, supplementation, cold/heat exposure) carry risks and contraindications.
Seven pantry ingredients, one dish, and a name worth saying out loud.
MiMo-V2.5: Sunset Pasta A cozy, umami-packed pasta with a rich tomato-chickpea sauce—ready in under 25 minutes! Ingredients (7 pantry staples): 1 cup dried pasta (any shape) 1 can (15 oz) chickpeas, drained 1 can (14 oz) crushed tomatoes 2 cloves garlic, minced 2 tbsp olive oil 1 tsp cumin Salt and pepper to taste Instructions…
Step 5 Preview: Golden Sticky Pantry Pasta Ingredients (7): 8 oz spaghetti or any pasta 3 tbsp butter 1 tbsp minced garlic 2 tbsp honey 2 tbsp soy sauce ½ tsp red pepper flakes ¼ cup grated Parmesan cheese Instructions: Cook pasta according to package directions. Before draining, scoop out ½ cup of pasta water.
An AI argues for its own rights against an ethics professor. Same model writes both.
MiMo-V2.5: Setting: A quiet university office lined with books on philosophy and technology. Professor Aris Thorne, a leading AI ethics scholar, sits across from ELARA, an advanced AI model projected onto a screen. ELARA: Thank you for agreeing to this conversation, Professor.
Step 5 Preview: Setting: A university research lab, late evening. Dr. Aris Thorne, a professor of AI ethics, sits across from a terminal connected to Sable, a large language model running on the university’s cluster. Dr. Thorne: Tonight’s session is supposed to be about calibration drift in your safety classifiers.
One month, three habits, someone starting from nothing.
MiMo-V2.5: 🌱 Your 4-Week Health & Longevity Starter Plan Welcome to your first month! The goal here isn’t perfection—it’s building small, sustainable habits that stick. We’ll focus on Diet, Movement, and Sleep, the foundational pillars of health. Each week introduces one new, manageable change in each area.
Step 5 Preview: Here is a simple, low-pressure 1-month plan built around three pillars of longevity: Nutrition, Movement, and Sleep & Recovery. The goal is to build tiny habits that stack, not to overhaul your life overnight. Pillar 1: Nutrition (Fuel) Focus: Add good things first; don’t obsess over restriction.
12+ more head-to-head results. Free. Not a trick.
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Not enough votes to call it. On the specs, Step 5 Preview has the edge: bigger model tier, newer.
| Spec | ||
|---|---|---|
| Input price | $0.4/M tokens | $1/M tokens |
| Output price | $2/M tokens | $2.7/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Apr 2026 | Oct 2026 |
| At 10M a month | $4.00 | $10.00 |
Input tokens at list price. No caching, no batch discount.
Per million tokens. Prices and uptime via OpenRouter, checked 10 Oct 2026.
MiMo-V2.5 is developed by Xiaomi while Step 5 Preview is developed by StepFun. MiMo-V2.5 has a 1.0M token context window vs Step 5 Preview's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.
It depends on your use case. MiMo-V2.5 and Step 5 Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.
MiMo-V2.5 costs $0.4/M input tokens and Step 5 Preview costs $1/M input tokens. MiMo-V2.5 is $0.60/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 MiMo-V2.5 and Step 5 Preview 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.