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  5. GPT-4vsMiMo-V2-Omni
Updated Mar 2026

GPT-4vsMiMo-V2-Omni

MiMo-V2-Omni is cheaper than GPT-4 at $0.4/M vs $30/M input tokens.

GPT-4 and MiMo-V2-Omni compared across 26 shared prompts
SpecGPT-4MiMo-V2-Omni
Input price$30/M tokens$0.4/M tokens
Output price$60/M tokens$2/M tokens
Context window8K tokens262K tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedMay 2023Mar 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 26 prompts both answered. Formatting stripped, words untouched.

Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

GPT-4319 words
Failure Modes: Single Point of Failure: If PostgreSQL database fails, the whole system will be unavailable. Solution: Implement a multi-master or master-slave replication for the PostgreSQL database. This will provide redundancy and high availability.
Read the full answer
MiMo-V2-Omni731 words
Architecture Analysis: Real-Time Collaborative Document Editor Critical Issues Identified 1. Conflict Resolution & Data Consistency Issue: Last-write-wins with client timestamps is fundamentally flawed Clock skew: Client clocks can differ by minutes, causing incorrect conflict resolution Network latency: Changes…
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

GPT-4441 words
An early invention of the transistor in 1920 would have had profound implications across numerous domains, drastically altering the course of history. Technological Implications: WWII: The transistor, a fundamental component of modern electronic devices, could have advanced the technology used in WWII significantly.
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MiMo-V2-Omni1,005 words
Excellent question. This is a profound counterfactual that would rewrite the 20th century. Let's trace the implications, keeping in mind that the transistor's invention wasn't just a new device—it was the key that unlocked the information age. An earlier start accelerates everything built upon it.
Read the full answer

Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

GPT-4404 words
3-Month Longevity Plan Dietary Protocols Month 1: Ketogenic Diet This diet is high in fats, moderate in protein, and low in carbohydrates. It helps in burning fat more effectively. Breakfast: 2 eggs, avocado, and mixed vegetables. Lunch: Grilled salmon with a side of asparagus. Dinner: Stir-fried chicken with broccoli.
Read the full answer
MiMo-V2-Omni1,046 words
Comprehensive 3-Month Longevity & Performance Optimization Plan For the Advanced Biohacker Disclaimer: This plan is for informational purposes only. Consult with a qualified physician before beginning any new regimen, especially if you have pre-existing conditions.
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Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

GPT-4442 words
Day 1: 8 AM-10 AM: Convene an emergency meeting with your core leadership team. This team includes the heads of Legal, Regulatory Affairs, Medical, Research and Development, Finance, and Communications. Brief them on the situation and ask for their initial input and strategies for managing the situation.
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MiMo-V2-Omni1,099 words
Hour-by-Hour Action Plan for Next 48 Hours Guiding Principle: Patient safety is non-negotiable. The ethical and legal obligation to protect patients overrides short-term financial concerns. Delaying disclosure increases liability and betrays public trust.
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Explain Like I'm a Specific Expert

Explain how a large language model (like GPT or Claude) learns and generates text to each of these three audiences: 1. **An experienced…

GPT-4495 words
Experienced Software Engineer: How does a language model like GPT produce intelligent behavior? Think of it as a highly specialized function in your code. This function has been trained on a large amount of text data, and it's main goal is to predict the next word in a sentence given the previous words.
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MiMo-V2-Omni951 words
Of course. Here are three tailored explanations of how large language models learn and generate text. For the Experienced Software Engineer Think of training a large language model not as teaching it rules, but as building an incredibly sophisticated, lossy compression algorithm for the entire public internet and a…
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Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

GPT-4172 words
Dish Name: Hearty Baked Beans Fiesta Ingredients: 2 cans of baked beans 1 large onion 3 cloves of garlic 1 bell pepper 1 can of sweet corn 2 tablespoons of olive oil Salt & pepper to taste Instructions: Preheat your oven to 350°F (175°C). Dice the onion, bell pepper, and mince the garlic.
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MiMo-V2-Omni227 words
🍝 Sunset Pasta A quick, vibrant dish that tastes like a cozy evening on a summer porch. Time: Prep 10 min Cook 15 min Serves: 2 Ingredients (7 pantry staples) Spaghetti or any pasta (8 oz / 225g) Canned crushed tomatoes (1 can, 14 oz / 400g) Garlic (3 cloves, minced) Olive oil (2 tbsp) Salt (to taste) Black pepper (to…
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Our Verdict
GPT-4
GPT-4
MiMo-V2-Omni
MiMo-V2-Omni

Not enough votes to call it. On the specs, nothing separates them.

MiMo-V2-Omni costs 30x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-4
Input
$30.00
Output
$60.00
MiMo-V2-Omni
Input
$0.40
75× cheaper
Output
$2.00
30× cheaper

MiMo-V2-Omni is cheaper on both: 75× input, 30× output.

Where to run it

2 hosts

GPT-42 hosts
HostInOutContextUptime
Azure AI Foundry$30.00 in·$60.00 out·8k·100% upOpenAI$30.00 in·$60.00 out·8k·100% up
MiMo-V2-Omni

No hosts listed on OpenRouter.

Per million tokens. Prices and uptime via OpenRouter, checked 21 Sep 2026.

Writing DNA

Style Comparison

Similarity
53%

MiMo-V2-Omni uses 25.7x more emoji

GPT-4
MiMo-V2-Omni
59%Vocabulary59%
18wSentence Length23w
1.10Hedging0.72
0.8Bold7.2
2.5Lists3.6
0.00Emoji0.26
0.00Headings1.25
0.45Transitions0.10
Based on 15 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

GPT-4 is developed by OpenAI while MiMo-V2-Omni is developed by Xiaomi. GPT-4 has a 8K token context window vs MiMo-V2-Omni's 262K. You can compare their actual outputs across 26 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-4 and MiMo-V2-Omni each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 26 challenges so you can judge which fits your needs best.

GPT-4 costs $30/M input tokens and MiMo-V2-Omni costs $0.4/M input tokens. MiMo-V2-Omni is $29.60/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 GPT-4 and MiMo-V2-Omni 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.

Keep exploring

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Same lab, same size, long tail

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GPT-4 logoGLM 5.2 logo
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Model pages

GPT-4 logo
GPT-426 outputs, specs and price
MiMo-V2-Omni logo
MiMo-V2-Omni53 outputs, specs and price
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