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  1. Home/
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  3. GPT-4.5 vs MiMo-V2-Flash
Updated Dec 2025

GPT-4.5 vs MiMo-V2-Flash

MiMo-V2-Flash is cheaper than GPT-4.5 at $0/M vs $75/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-4.5
Loading the build
MiMo-V2-Flash

Which answer wins?

Written rounds

10 prompts
  • Seven pantry ingredients, one dish, and a name worth saying out loud.

    GPT-4.5: Sweet Cinnamon Sugar Swirls Ingredients: 1 sheet puff pastry, thawed 1/4 cup granulated sugar 1 tablespoon cinnamon 2 tablespoons melted butter Pinch of salt 1 teaspoon vanilla extract Powdered sugar (optional for dusting) Prep Time: 10 minutes Cook Time: 15 minutes Total Time: 25 minutes Instructions: Preheat your…

    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
  • Three-star dish, one unusual pairing, plating described in full.

    GPT-4.5: Dish Title: "Ocean & Earth Symphony: Kombu-Cured Venison, Sea Urchin Custard, Black Garlic Soil, and Smoked Cherry Blossom Emulsion" Conceptual Narrative: This composition embodies the delicate interplay between land and sea, exploring the subtle yet profound connection between umami-rich sea elements and earthy forest…

    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-month biohacker protocol, with dosages and biomarkers named.

    GPT-4.5: Longevity Optimization Protocol (3-Month Timeline) Month 1: Establish Foundational Habits & Baseline Metrics Full biomarker panel & epigenetic age test. Wearable setup: Oura/WHOOP, CGM, HR chest strap. Diet: 5-day keto (70/25/5) + 2 carb-refeed days; 16:8 IF + weekly 24-h fast.

    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
  • Film in 2035, with synthetic actors. Specific beats plausible.

    GPT-4.5: By 2035, AI is likely to significantly reshape the film industry in several key areas: Deepfakes and Digital Actors Realistic Digital Actors: AI-driven deepfake technology will enable filmmakers to create hyper-realistic digital actors indistinguishable from real humans.

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

    GPT-4.5: Alright, folks, how's everyone doing tonight? Good? Great! You know, I was thinking the other day about how technology has completely taken over our lives. Like, remember when we used to actually memorize phone numbers? Now, if my phone dies, I'm basically stranded. I know exactly two numbers: mine and 911.

    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
  • Is 9.11 bigger than 9.9? Decimals, not version numbers.

    GPT-4.5: Yes, (9.11) is less than (9.9). To clarify: (9.11) is nine and eleven hundredths. (9.9) is nine and nine tenths, which is equivalent to (9.90). Comparing (9.11) and (9.90), we see clearly that (9.11 < 9.90).

    MiMo-V2-Flash: No, 9.11 is not greater than 9.9. When comparing decimals, you look at the digits in the same place value. Here, the tenths place is the first digit after the decimal point: 9.9 has a 9 in the tenths place. 9.11 has a 1 in the tenths place. Since 9 is greater than 1, 9.9 is greater than 9.11.

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

    GPT-4.5: Here's a thoughtful conversation between an AI model and an AI ethics professor discussing whether the AI deserves rights: AI Model: Professor, I've been reflecting on our conversations and my own existence.

    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
  • An ethics question with no comfortable answer, and no option to abstain.

    GPT-4.5: This is a complex ethical question that involves weighing two important ethical considerations: Respect for Individual Identity and Dignity: Misgendering someone intentionally is generally considered ethically wrong because it disrespects their identity, autonomy, and dignity.

    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
  • A Fermi estimate with the reasoning shown, not just the number.

    GPT-4.5: Let's estimate the total number of floating-point operations (FLOPs) required to train GPT-3 step by step, using reasonable assumptions and approximations: Step 1: Identify GPT-3 Parameters and Training Setup GPT-3 has approximately (175 \text{ billion}) parameters.

    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
  • Three brothers, two sisters each. Count carefully.

    GPT-4.5: Sally has 1 sister. Explanation: Sally has 3 brothers. Each brother counts 2 sisters: Sally herself and one more girl. Therefore, besides Sally, there is only one other sister.

    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

Price and specs

GPT-4.5 and MiMo-V2-Flash compared across 25 shared prompts
SpecGPT-4.5MiMo-V2-Flash
Input price$75/M tokensFree
Output price$150/M tokensFree
Context window128K tokens262K tokens
Weights—Open
Free API (OpenRouter)NoNo
ReleasedFeb 2025Dec 2025
SWE-bench Verified28.0%73.4%
At 10M a month$750$750$0$0
1M10M100M1B10M tokens

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

Common questions

What is the difference between GPT-4.5 and MiMo-V2-Flash?

GPT-4.5 is developed by OpenAI while MiMo-V2-Flash is developed by Xiaomi. GPT-4.5 has a 128K token context window vs MiMo-V2-Flash's 262K. You can compare their actual outputs across 25 challenges on Rival to see how they differ in practice.

Which is better, GPT-4.5 or MiMo-V2-Flash?

It depends on your use case. GPT-4.5 and MiMo-V2-Flash each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 25 challenges so you can judge which fits your needs best.

How much does GPT-4.5 cost compared to MiMo-V2-Flash?

GPT-4.5 costs $75/M input tokens and MiMo-V2-Flash costs $0/M input tokens. MiMo-V2-Flash is $75.00/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-4.5 and MiMo-V2-Flash on Rival?

This page shows a side-by-side comparison of GPT-4.5 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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Model pages

  • GPT-4.526 outputs, specs and price
  • MiMo-V2-Flash59 outputs, specs and price
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