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  5. GPT-5.1vsMiMo-V2.6-Pro
Updated Sep 2026

GPT-5.1vsMiMo-V2.6-Pro

MiMo-V2.6-Pro is cheaper than GPT-5.1 at $0.435/M vs $1.25/M input tokens.

GPT-5.1 and MiMo-V2.6-Pro compared across 9 shared prompts
SpecGPT-5.1MiMo-V2.6-Pro
Input price$1.25/M tokens$0.435/M tokens
Output price$10/M tokens$0.87/M tokens
Context window400K tokens1.0M tokens
WeightsClosed—
Free API (OpenRouter)NoNo
ReleasedNov 2025Sep 2026
Side by side

Same prompt, both answers

Opening lines from 2 of the 9 prompts both answered. Formatting stripped, words untouched.

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-5.1200 words
Dish Name: Pantry Sunset One-Pot Tomato Garlic Pasta Uses only these 7 common pantry ingredients: Dried pasta (spaghetti or any short pasta) – 8 oz (about 225 g) Canned crushed tomatoes – 1 can (14–15 oz / 400 g) Garlic – 3 cloves, minced (or 1 tsp garlic powder) Olive oil – 2 tbsp (any neutral oil works) Salt – 1 to…
Read the full answer
MiMo-V2.6-Pro332 words
🍝 Moonlight Garlic Kiss Pasta A silky, garlicky butter pasta that proves simple ingredients can make something truly unforgettable. 7 Pantry Ingredients # Ingredient Amount 1 Spaghetti (or any pasta) 8 oz (half a standard box) 2 Butter 4 tablespoons 3 Garlic cloves 5 cloves, thinly sliced 4 Parmesan cheese ½ cup…
Read the full answer

Beginner's Longevity Plan

Outline a simple, actionable 1-month plan for someone starting their journey towards better health and longevity. Focus on 3 key areas…

GPT-5.1979 words
Here’s a simple, beginner-friendly 1‑month plan focused on 3 pillars: Movement (Exercise) Eating (Diet) Sleep & Wind-Down You’ll add a few small habits each week so it stays doable. How to use this plan Pick a start date (e.g., next Monday). Print or note the weekly goals somewhere visible.
Read the full answer
MiMo-V2.6-Pro679 words
🌱 Your 1-Month Health & Longevity Starter Plan The 3 Pillars: Move · Nourish · Recover 🏃 MOVE (Exercise) Goal: Build a consistent, sustainable movement habit. Week 1 — Just Show Up Walk for 20 minutes daily (after lunch or dinner works great).
Read the full answer
Our Verdict
GPT-5.1
GPT-5.1
MiMo-V2.6-Pro
MiMo-V2.6-Pro

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

MiMo-V2.6-Pro costs 11x less per token.

Too close to call
API pricing

Cost per 1M tokens

GPT-5.1
Input
$1.25
Output
$10.00
MiMo-V2.6-Pro
Input
$0.43
2.9× cheaper
Output
$0.87
11× cheaper

MiMo-V2.6-Pro is cheaper on both: 2.9× input, 11× output.

Where to run it

4 hosts

GPT-5.12 hosts
HostInOutContextUptime
Azure AI Foundry$1.25 in·$10.00 out·400k·100% upOpenAI$1.25 in·$10.00 out·400k·100% up
MiMo-V2.6-Pro2 hosts
HostInOutContextUptime
DDeepInfrafp8$0.43 in·$0.87 out·1M·98.7% upXiaomifp8$0.43 in·$0.87 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

GPT-5.1 is developed by OpenAI while MiMo-V2.6-Pro is developed by Xiaomi. GPT-5.1 has a 400K token context window vs MiMo-V2.6-Pro's 1.0M. You can compare their actual outputs across 9 challenges on Rival to see how they differ in practice.

It depends on your use case. GPT-5.1 and MiMo-V2.6-Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 9 challenges so you can judge which fits your needs best.

GPT-5.1 costs $1.25/M input tokens and MiMo-V2.6-Pro costs $0.435/M input tokens. MiMo-V2.6-Pro is $0.81/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-5.1 and MiMo-V2.6-Pro 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

GPT-5.1 logo
GPT-5.152 outputs, specs and price
MiMo-V2.6-Pro logo
MiMo-V2.6-Pro9 outputs, specs and price
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