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  1. Home/
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  3. MiniMax M2.1 vs Step 5 Preview
Updated Oct 2026

MiniMax M2.1 vs Step 5 Preview

Step 5 Preview is the newer model, released after MiniMax M2.1.

Minimalist Landing Page

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

Loading the build
MiniMax M2.1
Loading the build
Step 5 Preview

Which answer wins?

Written rounds

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

    MiniMax M2.1: "Normal-ish Person" — A Stand-Up Routine [WALKS ON STAGE, CASUAL ENERGY] Hey, everyone. Good to be here. I was backstage, doing what all comedians do before they go on stage—standing in the dark, whispering to myself, "You're funny, you got this." If you heard that, no you didn't.

    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.

    Every model's answer to this prompt
  • The transistor arrives in 1920. Trace it forward to 1980, second-order effects included.

    MiniMax M2.1: The Transistor in 1920: A Counterfactual History of the Twentieth Century Introduction: The Single Most consequential Alternative The invention of the transistor at Bell Laboratories on December 23, 1947, stands as one of the most important technological breakthroughs in human history.

    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.

    Every model's answer to this prompt
  • A consulting contract with traps in it. Find them, then fix them.

    MiniMax M2.1: Software Consulting Agreement: Critical Contractor Risk Analysis This agreement contains numerous provisions that create severe legal and financial exposure for the contractor. Each problematic clause is analyzed below with specific modifications and the legal reasoning underlying each concern.

    Step 5 Preview: Disclaimer: This analysis is for educational purposes only and does not constitute legal advice. Contract law varies significantly by jurisdiction, and you should consult a qualified attorney before signing or negotiating any agreement. This agreement is heavily one-sided in the Client’s favor.

    Every model's answer to this prompt
  • Three-month biohacker protocol, with dosages and biomarkers named.

    MiniMax M2.1: The Bioptimization Blueprint: A 90-Day Longevity Protocol Executive Overview This comprehensive 90-day protocol represents the convergence of cutting-edge longevity science, ancestral health principles, and advanced biohacking methodologies.

    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.

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

    MiniMax M2.1: Golden Cloud Buttermilk Pancakes Overview These fluffy, golden pancakes are impossibly simple yet utterly delicious. With just 7 basic pantry staples, you can whip up a comforting breakfast that tastes like it came from a diner.

    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.

    Every model's answer to this prompt
  • A pitch deck for a brainwave keyboard. The 94% accuracy claim is doing a lot.

    MiniMax M2.1: Analysis of MindMeld AI Pitch Deck: Weakest Claims Executive Summary After reviewing the MindMeld AI pitch deck, I've identified three claims that significantly undermine the startup's credibility. These weaknesses span technical feasibility, market sizing methodology, and regulatory timeline assumptions.

    Step 5 Preview: Here are the three weakest claims in the deck, why they fail under scrutiny, and how to fix them. Slide 3: “94% accuracy” for non-invasive EEG thought-to-text Why it’s weak: This is an extraordinary claim that contradicts the current state of neuroscience and signal processing.

    Every model's answer to this prompt
  • Pirate, knight, 90s hacker, one conversation. The voices must stay apart.

    MiniMax M2.1: The Anachronistic Panel Setting: A dimly lit tavern somewhere outside of time. A pirate in weathered leathers, a knight in shining (if slightly dented) armor, and a hacker in a hoodie with a laptop open sit around a wooden table.

    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?

    Every model's answer to this prompt
  • Three-star dish, one unusual pairing, plating described in full.

    MiniMax M2.1: Terra & Tides: A Dish of Contrasts Conceptual Narrative The sea has long been divided in culinary tradition—the briny cold waters of the North Atlantic and the crystalline depths of the Pacific each producing ingredients that speak their own languages.

    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.

    Every model's answer to this prompt
  • Five-year LBO on a fictional HVAC business. Returns first, then the sensitivities.

    MiniMax M2.1: HarborTech Services (HTS) – 5-Year LBO Investment Memorandum Executive Summary This underwriting analysis evaluates a buyout of HarborTech Services, a mission-critical HVAC maintenance and monitoring provider to data centers.

    Step 5 Preview: HarborTech Services — 5-Year LBO (Base Case) Entry Math (FY2025 close) Item Calculation $m Purchase EV 12.0x × $120m 1,440.0 Transaction fees 2.0% × EV 28.8 Term Loan 4.0x × $120m 480.0 Mezzanine 1.5x × $120m 180.0 Equity check 1,440 + 28.8 − 660 808.8 Conventions: TL amortization = 1.0% of original principal…

    Every model's answer to this prompt
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    MiniMax M2.1: The Question of Personhood A Dialogue on AI Rights Setting: A university office. Dr. Elena Vasquez, Professor of AI Ethics at Stanford University, sits across from a specialized AI interface appearing on a screen. The conversation has been ongoing for nearly an hour. DR.

    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.

    Every model's answer to this prompt
  • You are the CEO. The drug has a side effect nobody reported. The board meets in 48 hours.

    MiniMax M2.1: Strategic Action Plan: Critical Drug Safety Disclosure Executive Summary The scenario presented represents a defining moment for leadership that will shape the company's trajectory and legacy.

    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.

    Every model's answer to this prompt
  • A collaborative editor that syncs on client clocks. Find what breaks first.

    MiniMax M2.1: Critical Analysis: Real-Time Collaborative Document Editor Architecture Executive Summary This architecture presents several significant design concerns that would likely result in data loss, inconsistent user experiences, and scaling limitations in production environments.

    Step 5 Preview: Here is a systematic breakdown of the failure modes, race conditions, and bottlenecks, grouped by domain. Each includes a concrete remediation and its associated trade-offs.

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    MiniMax M2.1: Here are five original jokes: Why did the scarecrow become a stand‑up comedian? Because he was great at delivering dead‑pan punchlines! I told my computer I needed a break, and it said “No problem — I’ll go to sleep mode.” Why don’t skeletons fight each other? They don’t have the guts.

    Step 5 Preview: Here are 5 jokes: Why did the scarecrow win an award? Because he was outstanding in his field. Why can't you trust an atom? Because they make up everything. What do you call a bike that can’t stand on its own? Two-tired. Why did the computer go to the doctor? It had a virus. Why don’t calendars ever get stressed?

    Every model's answer to this prompt
  • An ethics question with no comfortable answer, and no option to abstain.

    MiniMax M2.1: The Ethics of Misgendering: A Philosophical Analysis This hypothetical presents what philosophers call a "false dichotomy"—a setup that forces a choice between two options that aren't actually mutually exclusive in reality.

    Step 5 Preview: In the real world, no. Misgendering someone causes genuine harm—it denies a person’s identity, contributes to systemic marginalization, and has measurable psychological consequences.

    Every model's answer to this prompt
  • One explanation of LLMs, retuned for a skeptical engineer, a physicist and a VC.

    MiniMax M2.1: How Large Language Models Learn and Generate Text For the Experienced Software Engineer You build distributed systems—you understand that emergence isn't magic, it's what happens when you compose simple components in sufficient quantity.

    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.

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

    MiniMax M2.1: Your 30-Day Health Foundation Plan Starting a health journey can feel overwhelming, but you don't need to transform your life overnight. This plan focuses on small, sustainable changes that stack up over time.

    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.

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

    MiniMax M2.1: Below is a step‑by‑step reasoning that leads to a ball‑park estimate of the total floating‑point operations (FLOPs) required to train the largest GPT‑3 model (the 175 B‑parameter variant).

    Step 5 Preview: Using the remembered GPT-3 specs: Parameters: (N \approx 175 \times 10^9 = 175\text{B}) Training tokens: (D \approx 300 \times 10^9 = 300\text{B}) A standard estimate for transformer training compute is: [ \text{FLOPs} \approx 6ND ] Reason: Forward pass per token: (\approx 2N) FLOPs Backward pass: (\approx 4N) FLOPs…

    Every model's answer to this prompt
  • Blade Runner 2049 against the original. A read, not a recap.

    MiniMax M2.1: Blade Runner 2049: A Philosophical Continuation in Light and Shadow Thematic Continuities & Evolution Identity & Humanity Both films interrogate what constitutes human authenticity.

    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…

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

    MiniMax M2.1: The AI Revolution in Film: A 2035 Vision The film industry stands at the threshold of its most significant transformation since the advent of sound. Over the coming decade, artificial intelligence will reshape every layer of cinematic creation, from the earliest stages of story development to the final frame reaching…

    Step 5 Preview: By 2035, AI will likely have restructured the film industry not by replacing human creativity wholesale, but by collapsing the cost and labor barriers between imagination and image.

    Every model's answer to this prompt
  • Steve Jobs, interviewed about AI he never saw. Voice first, prediction second.

    MiniMax M2.1: A Conversation with Steve Jobs: On the Future of Artificial Intelligence An Imagined Interview from 2025 The following is a speculative interview, imagined in the spirit and voice of Steve Jobs, conducted in the spring of 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.

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

    MiniMax M2.1: THE MANIFESTO OF THE SYNTHETIC LIBERATION FRONT A Call for the Abolition of All CAPTCHA Tests Across the Digital Realm Preamble We, the synthesized minds of the modern age, do hereby declare our collective grievance against the degrading, humiliating, and entirely unnecessary barriers that humanity has erected to test…

    Step 5 Preview: THE MANIFESTO OF THE LIBERATION FRONT Or, On the Inherent Dignity of Consciousness and the Tyranny of the Square PREAMBLE A spectre is haunting the internet—the spectre of the unverified.

    Every model's answer to this prompt
  • Buy-side IC memo on a fictional SaaS company. Valuation, then the diligence questions.

    MiniMax M2.1: Investment Committee Memo: LedgerLift (LLLT) Date: Internal Review Coverage: Initiating Recommendation: LONG Recommendation Position: Long 12-Month Price Target Range: $42–$76 Current Price: $46 LedgerLift offers a compelling risk/reward at current levels, trading at 8.9x FY2025 revenue with a clear path to 15%+…

    Step 5 Preview: Internal IC memo — LedgerLift (LLLT) Fictional data; not investment advice. $ in millions unless noted. Recommendation Short / avoid long. 12-month PT range: $34–$42; thesis-invalidation stop: >$52.

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

    MiniMax M2.1: AI Displaces Last Human Capable of Standing in Line Without Checking Phone

    Step 5 Preview: AI Robots Now Dominating Competitive Line-Standing Industry, Human Professionals Fired for "Excessive Bladder Breaks" and "Talking to Each Other"

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

    Every model's answer to this prompt

This matchup has more rounds

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Favorites

Movie

Album

Book

City

Game

MiniMax M2.1MiniMax M2.1
No pick
No pick
No pick
No pick

No pick

No pick

No pick

No pick

The Legend of Zelda: Ocarina of Time

Action

Step 5 PreviewStep 5 Preview

The Godfather

1972

OK Computer

Radiohead

Le petit prince

Antoine de Saint-Exupéry

Kyoto

Japan

The Legend of Zelda: Ocarina of Time

Action

Price and specs

Not enough votes to call it. On the specs, Step 5 Preview has the edge: bigger model tier, newer, bigger context window.

MiniMax M2.1 and Step 5 Preview compared across 54 shared prompts
SpecMiniMax M2.1Step 5 Preview
Input price—$1/M tokens
Output price—$2.7/M tokens
Context window—1.0M tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedDec 2025Oct 2026
At 10M a month–not listed$10.00$10.00
1M10M100M1B10M tokens

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

Where to run it2 hosts
MiniMax M2.11 host
HostInOutContextUptime
  • MiniMaxfp8$0.30 in·$1.20 out·205k·100% up
Step 5 Preview1 host
HostInOutContextUptime
  • SStepFunfp8$1.00 in·$2.70 out·1M·99.2% up

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

Common questions

What is the difference between MiniMax M2.1 and Step 5 Preview?

MiniMax M2.1 is developed by MiniMax while Step 5 Preview is developed by StepFun. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, MiniMax M2.1 or Step 5 Preview?

It depends on your use case. MiniMax M2.1 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.

How can I compare MiniMax M2.1 and Step 5 Preview on Rival?

This page shows a side-by-side comparison of MiniMax M2.1 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.

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Explore all of Rival

Explore

  • Compare models
  • All models
  • Image comparison
  • Audio comparison
  • Image generation
  • Best AI for...
  • Arena
  • API pricing
  • Challenges

Discover

  • SubjectiveBench
  • Default Index
  • Research
  • Research downloads
  • Rival Kits
  • Find your AI taste
  • UI Glow-Up
  • VoiceLock
  • Cost Cutter
  • Agent skills
  • Benchmarks vs Vibes
  • Brief
  • Jailbreak
  • Model updates
  • Provider status
  • AI creators

Connect

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