What is the difference between GPT-4o (Omni) and Mistral Medium 3?

GPT-4o (Omni) is developed by OpenAI while Mistral Medium 3 is developed by Mistral AI. GPT-4o (Omni) has a 128K token context window vs Mistral Medium 3's 131K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, GPT-4o (Omni) or Mistral Medium 3?

It depends on your use case. GPT-4o (Omni) and Mistral Medium 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does GPT-4o (Omni) cost compared to Mistral Medium 3?

GPT-4o (Omni) costs $2.5/M input tokens and Mistral Medium 3 costs $0.4/M input tokens. Mistral Medium 3 is $2.10/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-4o (Omni) and Mistral Medium 3 on Rival?

This page shows a side-by-side comparison of GPT-4o (Omni) and Mistral Medium 3 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.

Updated May 2025

GPT-4o (Omni)vsMistral Medium 3

Mistral Medium 3 is cheaper than GPT-4o (Omni) at $0.4/M vs $2.5/M input tokens.

GPT-4o (Omni) and Mistral Medium 3 compared across 54 shared prompts
Spec	GPT-4o (Omni)	Mistral Medium 3
Input price	$2.5/M tokens	$0.4/M tokens
Output price	$10/M tokens	$2/M tokens
Context window	128K tokens	131K tokens
Parameters	Not disclosed	Not disclosed
Weights	Closed	—
Free API (OpenRouter)	No	No
Released	May 2024	May 2025
HumanEval	90.2%	92.1%