What is the difference between MiMo-V2.5-Pro and OpenAI o3?

MiMo-V2.5-Pro is developed by Xiaomi while OpenAI o3 is developed by OpenAI. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, MiMo-V2.5-Pro or OpenAI o3?

It depends on your use case. MiMo-V2.5-Pro and OpenAI o3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How much does MiMo-V2.5-Pro cost compared to OpenAI o3?

MiMo-V2.5-Pro costs $1/M input tokens and OpenAI o3 costs $10/M input tokens. MiMo-V2.5-Pro is $9.00/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 MiMo-V2.5-Pro and OpenAI o3 on Rival?

This page shows a side-by-side comparison of MiMo-V2.5-Pro and OpenAI o3 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 Apr 2026

MiMo-V2.5-ProvsOpenAI o3

MiMo-V2.5-Pro is cheaper than OpenAI o3 at $1/M vs $10/M input tokens.

MiMo-V2.5-Pro and OpenAI o3 compared across 52 shared prompts
Spec	MiMo-V2.5-Pro	OpenAI o3
Input price	$1/M tokens	$10/M tokens
Output price	$3/M tokens	$40/M tokens
Context window	1.0M tokens	—
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Apr 2026	Apr 2025