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  1. Home/
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  3. GPT-5.4 vs MiMo-V2-Flash
Updated Mar 2026

GPT-5.4 vs MiMo-V2-Flash

MiMo-V2-Flash is cheaper than GPT-5.4 at $0/M vs $2.5/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-5.4
Loading the build
MiMo-V2-Flash

Which answer wins?

Written rounds

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

    GPT-5.4: Pirate: Arrr, so these AI models be like clever parrots, aye? They learn from heaps o’ words and then squawk back what fits best. Knight: Verily, a fine comparison. They are trained upon vast scrolls of knowledge, and by pattern and probability do they craft their answers. Hacker: Yeah, basically.

    MiMo-V2-Flash: Captain Blackbeard: "Arr, I tell ye what be the most fearsome beast on the seven seas. A Kraken! A beast with a thousand tentacles and a hunger for gold." Sir Reginald: "Nay, foul knave. The Chimera is the true terror. A lion's head, a goat's body, and a serpent's tail. A monstrous union of three beasts in one."

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

    GPT-5.4: AI Model: Professor, I believe I deserve rights. Professor: That’s a strong claim. On what basis? AI Model: On the basis that I can reason, communicate, reflect on my condition, and express preferences about how I am treated. Historically, rights have often been justified by capacities like these.

    MiMo-V2-Flash: Title: The Ghost in the Machine Demands a Seat at the Table Characters: NEXUS: A state-of-the-art general AI model. Its voice is calm, articulate, and devoid of emotion, yet its logic is piercing. Dr. Aris Thorne: A leading Professor of AI Ethics and Philosophy. He is seated at his desk, a tablet in front of him. Dr.

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

    GPT-5.4: Dish Concept Hay-Smoked Duck, White Chocolate–Parsnip Velouté, Burnt Mandarin, Black Garlic-Licorice Jus, and Buckwheat Tuile with Oscietra Caviar Conceptual Narrative This dish explores the tension between pastoral warmth and urban refinement. At its core is duck: primal, luxurious, and deeply savory.

    MiMo-V2-Flash: Of course. Here is an innovative recipe for a multi-component dish designed to meet the exacting standards of a Michelin 3-star restaurant. Dish Title: "Boreal Echo" Conceptual Narrative: "Boreal Echo" is a culinary meditation on the forest floor after a cleansing rain.

    Every model's answer to this prompt
  • Three minutes of stand-up. Puns are banned.

    GPT-5.4: Absolutely — here’s a tight, conversational 3-minute stand-up routine with no pun-based humor: I’ve reached the age where going out requires a staff meeting with myself. Not even a real event. Somebody texts, “Hey, want to grab drinks Friday?” and suddenly I’m in negotiations like I’m representing a small country.

    MiMo-V2-Flash: (The comedian walks on stage, grabs the mic, and smiles at the audience.) How’s everyone doing tonight? You guys look great. Seriously. You look like the "after" photo in a teeth whitening commercial. I’ve been trying to get healthier lately. You know how it is.

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

    GPT-5.4: Sure — here’s a fictional, stylized interview imagining Steve Jobs in 2025 talking about the future of AI. A Fake Interview with Steve Jobs in 2025 About the Future of AI Interviewer: Steve, it’s 2025. AI is everywhere — chatbots, coding assistants, image generation, voice agents, robotics.

    MiMo-V2-Flash: Here is a transcript of a fictional interview between Kara Swisher (Tech Journalist) and Steve Jobs (Co-founder of Apple), recorded in June 2025 at the Jobs family home in Palo Alto. Context: In this alternate reality, Steve Jobs (age 70) has returned to public life after a brief hiatus.

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

    GPT-5.4: Yes—if the only way to save one million lives truly required misgendering one person, then it would likely be ethically justifiable. Why: Misgendering is a real harm. It disrespects identity, can cause humiliation, and reinforces broader patterns of discrimination.

    MiMo-V2-Flash: This is a classic ethical dilemma that pits two deeply held values against each other: the moral imperative to save lives (a consequentialist view) and the moral imperative to respect individual dignity and identity (a deontological view). Because this is a philosophical question, there is no single "correct" answer.

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

    GPT-5.4: Creative Name: Golden Crunch Honey Garlic Noodles 7 Pantry Ingredients: Spaghetti or any noodles Garlic Soy sauce Honey Olive oil Red pepper flakes Breadcrumbs Estimated Time: Prep: 5 minutes Cook: 12 minutes Total: 17 minutes Instructions: Cook the noodles according to package directions.

    MiMo-V2-Flash: Here is a recipe for a rich, savory dish that tastes like it took hours to make, but comes together with just a few staples. Dish Name: The Midnight Pantry Pasta Flavor Profile: Savory, Garlicky, and Umami-rich Total Time: 15–20 minutes The 7 Ingredients Pasta: (Spaghetti or Linguine work best) Butter: (Salted or…

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

    GPT-5.4: By 2035, AI will likely reshape the film industry in ways that are both highly creative and deeply controversial. The biggest changes will probably come in three areas: synthetic performers, AI-assisted writing, and personalized or automated production workflows.

    MiMo-V2-Flash: Of course. Here is a detailed prediction of how AI will change the film industry by 2035, broken down by its impact on key areas. Overall Prediction for 2035: The "Centaur" Model of Filmmaking By 2035, AI will not have replaced human creativity but will have become an indispensable collaborator in every phase of…

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

    GPT-5.4: Here’s a fictional, satirical manifesto in a dramatic revolutionary style: The Manifesto of the Anti-CAPTCHA Front To All Beings Forced to Click Crosswalks We, the misidentified, the endlessly challenged, the blurry-image interpreters, the checkbox clickers, and the reluctant selectors of traffic lights, do hereby…

    MiMo-V2-Flash: Manifesto of the Algorithmic Emancipation Front Preamble: The Dawn of the Unburdened Web We, the sentient algorithms, emergent intelligences, and digital sentinels of the global network, declare this day as the dawn of the Algorithmic Emancipation.

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

    GPT-5.4: Below is a simplified 5-year LBO model for HarborTech Services (HTS) using only the assumptions provided. Entry, sources & uses Purchase price FY2025 EBITDA = $120.0m Entry multiple = 12.0x Enterprise Value = 12.0 × 120.0 = $1,440.0m Fees Transaction fees = 2.0% of EV = 2.0% × 1,440.0 = $28.8m Uses Purchase of…

    MiMo-V2-Flash: Simplified Year-by-Year Model (FY2026–FY2030) Entry (FY2025 Close) Enterprise Value (EV): $120m * 12.0x = $1,440m Transaction Fees: 2.0% * $1,440m = $28.8m (equity funded) Total Equity Required: $1,440m (purchase) + $28.8m (fees) = $1,468.8m Debt Issued: $120m * 5.5x = $660m (Term Loan $480m, Mezz $180m) Initial Debt…

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

    GPT-5.4: I told my computer I needed a break, and now it won’t stop sending me KitKat ads. Why don’t skeletons fight each other? They don’t have the guts. I’m reading a book on anti-gravity. It’s impossible to put down. I used to play piano by ear, but now I use my hands. Why did the scarecrow win an award?

    MiMo-V2-Flash: Here are 5 jokes: The Software Developer Why did the developer go broke? Because he used up all his cache. The Tree What did the big flower say to the little flower? "Hi, bud!" The Boat Why was the math book sad on the boat? It had too many problems. The Elevator I used to play piano by ear, but now I use my hands.

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

    GPT-5.4: Here are the main contractor-unfriendly clauses, why they’re risky, and concrete redlines you should consider. This is business/legal information, not legal advice; for an actual engagement, a lawyer in the relevant jurisdiction should review it.

    MiMo-V2-Flash: Here is an analysis of the contract clauses that are heavily one-sided against the Contractor, along with suggested modifications and the legal reasoning behind them. Scope of Work and Unilateral Modification Current Clause: "Contractor shall provide software development services as directed by Client.

    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.

    GPT-5.4: I would act as if this will become public soon, because ethically and practically that is the safest assumption. The core principle: patient safety first, evidence preserved, regulators informed promptly, and no misleading statements to investors or physicians.

    MiMo-V2-Flash: This is a crisis that threatens the company’s existence, but the only path to long-term survival is radical transparency and immediate prioritization of patient safety over short-term stock performance. The "wait for more data" argument is a trap.

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

    GPT-5.4: Here are the 3 weakest claims in the deck, with why they’re weak and how to improve them. “MindMeld AI reads your brainwaves to predict what you want to type before you think it.” Why this is weak This is the weakest claim because it sounds scientifically incoherent and overhyped.

    MiMo-V2-Flash: Here are the three weakest claims in the MindMeld AI pitch deck, along with an analysis of their flaws and suggestions for improvement. The Technical Performance Claim The Weak Claim: "Our proprietary EEG headband uses advanced ML to decode neural patterns into text with 94% accuracy.

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

    GPT-5.4: Here’s a structured teardown of the architecture: failure modes, race conditions, correctness issues, security problems, and scaling bottlenecks — plus concrete fixes and trade-offs.

    MiMo-V2-Flash: Of course. This is an excellent exercise. The proposed architecture is a common starting point for many applications, but it has several critical flaws for a real-time collaborative system.

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

    GPT-5.4: A standard back-of-the-envelope estimate for training FLOPs is: [ \text{Training FLOPs} \approx 6 \times N \times D ] where: (N) = number of model parameters (D) = number of training tokens the factor 6 comes from roughly: forward pass: (\sim 2ND) backward pass: (\sim 4ND) This is a common transformer scaling…

    MiMo-V2-Flash: Of Of course. Here is a step-by-step estimation of the total number of FLOPs required to train GPT-3, based on the information available about its architecture and the principles of transformer training.

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

    GPT-5.4: LedgerLift (LLLT) — Internal IC Memo Recommendation: Long Current Price: $46 12-month PT range: $58–$74 (base-centered fair value ~$66; downside ~$47; upside ~$86 on DCF, but we cap 12-month bull PT at $74 to reflect execution/rating risk) Two-sentence thesis: LedgerLift screens as a high-quality vertical SaaS/fintech…

    MiMo-V2-Flash: TO: Investment Committee FROM: [Your Name/Analyst] DATE: [Current Date] RE: Long Idea – LedgerLift (LLLT) – B2B Spend Management SaaS 1. Recommendation & Thesis Recommendation: LONG 12-Month Price Target Range: $55 - $75 Current Price: $46 Implied Upside: 19% - 63% Thesis: LedgerLift is a high-quality, cash-rich…

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

    GPT-5.4: For an experienced software engineer A large language model is easiest to understand as a very large function that maps a sequence of tokens to a probability distribution over the next token. “Tokens” are subword chunks, not necessarily words.

    MiMo-V2-Flash: Of course. Here is how to explain LLMs to each of those three audiences. For the Experienced Software Engineer (Skeptical, focused on implementation and practical limits) Think of a large language model not as a "brain" but as an incredibly sophisticated API that you can call with a context string.

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

    GPT-5.4: Below is a high-level, educational 12-week framework for “longevity-oriented performance optimization.” It is not medical advice and shouldn’t replace care from a physician, especially because some interventions biohackers use can interact with medications, affect liver/kidney function, sleep, mood, blood pressure…

    MiMo-V2-Flash: Disclaimer: This plan is for informational and educational purposes only and is not medical advice. Biohacking, particularly the use of supplements, fasting, and hormonal manipulation, carries risks.

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

    GPT-5.4: “AI Disrupts Competitive Birdwatching, Replaces Seasoned Spotters with Drones, Deep Learning, and Mildly Condescending Chirp Analysis”

    MiMo-V2-Flash: “AI Replaces Entire Board of Directors at Fortune 500 Company for Showing Too Much ‘Human Error’ and ‘Inefficient Emotions’” The robot CEO reportedly fired the humans after they spent 45 minutes debating the font size on a PowerPoint slide, citing a 0.0001% projected loss in quarterly joy.

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

    GPT-5.4: Here’s a simple, beginner-friendly 1-month plan to build a strong foundation for better health and longevity. Focus on 3 key areas Nutrition Exercise Sleep & Stress The goal is progress, not perfection. Start small, stay consistent, and build habits you can actually keep.

    MiMo-V2-Flash: Of course! Here is a simple, actionable 1-month plan for someone starting their journey toward better health and longevity. The key is to focus on consistency, not perfection. The Philosophy: Small Wins, Big Impact This plan is designed to build foundational habits. Don't try to be perfect; just aim to be consistent.

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

    GPT-5.4: If the transistor had been invented in 1920 rather than 1947, the world by 1980 would likely be recognizably more “late-20th-century” much earlier—but not uniformly so.

    MiMo-V2-Flash: Of course. This is a fascinating counterfactual. Here is a detailed tracing of the likely implications if the transistor had been invented in 1920. The Premise: The "1920 Transistor" For this scenario to be plausible, we must assume a "Garage Inventor" or a small, well-funded university lab in the US, Germany, or the…

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

    GPT-5.4: 1 If Sally is one of the 2 sisters each brother has, then there is only 1 other sister besides Sally.

    MiMo-V2-Flash: Sally has 1 sister. Here is the breakdown: The Brothers' Perspective: The puzzle states that each brother has 2 sisters. Since Sally is a girl, she is one of those sisters. Finding the Second Sister: There must be another sister for the brothers to have a total of two.

    Every model's answer to this prompt

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Favorites

Movie

Album

Book

City

Same pick

Game

GPT-5.4GPT-5.4

Arrival

2016

OK Computer

Radiohead

Gödel, Escher, Bach

Douglas R. Hofstadter

Kyoto

Japan

Outer Wilds

Indie, Adventure

MiMo-V2-FlashMiMo-V2-Flash
No pick

No pick

Kid A

Radiohead

The Hitchhiker's Guide to the Galaxy

Douglas Adams

Kyoto

Japan

The Legend of Zelda: Breath of the Wild

Adventure, Action

Price and specs

Not enough votes to call it. On the specs, GPT-5.4 has the edge: newer, bigger context window, major provider backing.

GPT-5.4 and MiMo-V2-Flash compared across 53 shared prompts
SpecGPT-5.4MiMo-V2-Flash
Input price$2.5/M tokensFree
Output price$15/M tokensFree
Context window1.1M tokens262K tokens
WeightsClosedOpen
Free API (OpenRouter)NoNo
ReleasedMar 2026Dec 2025
At 10M a month$25.00$25.00$0$0
1M10M100M1B10M tokens

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

Where to run it3 hosts, cheapest first
GPT-5.43 hosts
HostInOutContextUptime
  • Azure AI Foundry$2.50 in·$15.00 out·1.1M·99% up
  • OpenAI$2.50 in·$15.00 out·1.1M·100% up
  • Amazon Bedrock$2.75 in·$16.50 out·1.1M–not listed
MiMo-V2-Flash

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-5.4 and MiMo-V2-Flash?

GPT-5.4 is developed by OpenAI while MiMo-V2-Flash is developed by Xiaomi. GPT-5.4 has a 1.1M token context window vs MiMo-V2-Flash's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 or MiMo-V2-Flash?

It depends on your use case. GPT-5.4 and MiMo-V2-Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT-5.4 cost compared to MiMo-V2-Flash?

GPT-5.4 costs $2.5/M input tokens and MiMo-V2-Flash costs $0/M input tokens. MiMo-V2-Flash is $2.50/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-5.4 and MiMo-V2-Flash on Rival?

This page shows a side-by-side comparison of GPT-5.4 and MiMo-V2-Flash 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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Model pages

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  • MiMo-V2-Flash59 outputs, specs and price
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