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  5. Devstral 2 2512vsGPT-6 Luna Pro
Updated Sep 2026

Devstral 2 2512vsGPT-6 Luna Pro

GPT-6 Luna Pro is the newer model, released after Devstral 2 2512.

Devstral 2 2512 and GPT-6 Luna Pro compared across 2 shared prompts
SpecDevstral 2 2512GPT-6 Luna Pro
Input price—$0.1/M tokens
Output price—$0.5/M tokens
Context window—1.1M tokens
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedDec 2025Sep 2026
Side by side

Same prompt, both answers

Opening lines from every prompt 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…

Devstral 2 2512153 words
Dish Name: "Golden Crisp Honey-Nut Bites" A sweet, crunchy, and satisfying treat made with just 7 pantry staples! Ingredients: 1 cup rolled oats ½ cup peanut butter (or any nut/seed butter) ¼ cup honey (or maple syrup) ½ tsp cinnamon ¼ tsp salt 1 tsp vanilla extract (optional but recommended) 2 tbsp chopped nuts…
Read the full answer
GPT-6 Luna Pro127 words
Golden Pantry Pancakes Fluffy, lightly sweet pancakes made with everyday staples. Makes: About 6 small pancakes Prep time: 5 minutes Cook time: 10 minutes Ingredients 1 cup all-purpose flour 1 cup milk 1 egg 2 tablespoons sugar 1 teaspoon baking powder ¼ teaspoon salt 2 tablespoons butter, melted (plus a little for the…
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…

Devstral 2 2512665 words
Here’s a simple, actionable 1-month plan to kickstart your journey toward better health and longevity, focusing on diet, exercise, and sleep—three foundational pillars. Each week builds on the last, making it sustainable and beginner-friendly.
Read the full answer
GPT-6 Luna Pro327 words
A simple 1-month plan for better health and longevity Choose three foundations: eating well, moving regularly, and sleeping consistently. Aim for steady habits, not perfection. Diet: Make nourishing choices easier Week 1: Add one serving of fruit or vegetables to one meal each day.
Read the full answer
Our Verdict
Devstral 2 2512
Devstral 2 2512
GPT-6 Luna Pro
GPT-6 Luna Pro

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

Too close to call
API pricing

Cost per 1M tokens

Devstral 2 2512
Input
—
Output
—
GPT-6 Luna Pro
Input
$0.10
Output
$0.50
Where to run it

3 hosts

Devstral 2 25121 host
HostInOutContextUptime
Mistral$0.40 in·$2.00 out·262k·99.4% up
GPT-6 Luna Pro2 hosts
HostInOutContextUptime
Azure AI Foundry$0.10 in·$0.50 out·1.1M·98.6% upOpenAI$0.10 in·$0.50 out·1.1M·99.9% up

Per million tokens. Prices and uptime via OpenRouter, checked 25 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Devstral 2 2512 is developed by Mistral AI while GPT-6 Luna Pro is developed by OpenAI. You can compare their actual outputs across 2 challenges on Rival to see how they differ in practice.

It depends on your use case. Devstral 2 2512 and GPT-6 Luna Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 2 challenges so you can judge which fits your needs best.

This page shows a side-by-side comparison of Devstral 2 2512 and GPT-6 Luna 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.

Keep exploring

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Same lab, same size, long tail

Devstral 2 2512 logoMistral Small 4 logo
Devstral 2 2512 vs Mistral Small 4Same lab
Devstral 2 2512 logoClaude Opus 4.6 logo
Devstral 2 2512 vs Claude Opus 4.6Same size
GPT-6 Luna Pro logoGPT-6 Sol Pro logo
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GPT-6 Luna Pro logoGPT-6 Sol logo
GPT-6 Luna Pro vs GPT-6 SolSame lab
Devstral 2 2512 logoQwen3.7 Flash logo
Devstral 2 2512 vs Qwen3.7 FlashNew provider
Devstral 2 2512 logoQwen3.7 Max logo
Devstral 2 2512 vs Qwen3.7 MaxSame size
Devstral 2 2512 logoQwen3.7 Plus logo
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Model pages

Devstral 2 2512 logo
Devstral 2 251235 outputs, specs and price
GPT-6 Luna Pro logo
GPT-6 Luna Pro20 outputs, specs and price
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