What is the difference between GPT-6 Astra and MiMo-V2.5-Pro?

GPT-6 Astra is developed by OpenAI while MiMo-V2.5-Pro is developed by Xiaomi. GPT-6 Astra has a 1.1M token context window vs MiMo-V2.5-Pro's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-6 Astra or MiMo-V2.5-Pro?

It depends on your use case. GPT-6 Astra and MiMo-V2.5-Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT-6 Astra cost compared to MiMo-V2.5-Pro?

GPT-6 Astra costs $10/M input tokens and MiMo-V2.5-Pro costs $1/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 GPT-6 Astra and MiMo-V2.5-Pro on Rival?

This page shows a side-by-side comparison of GPT-6 Astra and MiMo-V2.5-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.

Updated Sep 2026

GPT-6 AstravsMiMo-V2.5-Pro

MiMo-V2.5-Pro is cheaper than GPT-6 Astra at $1/M vs $10/M input tokens.

GPT-6 Astra and MiMo-V2.5-Pro compared across 53 shared prompts
Spec	GPT-6 Astra	MiMo-V2.5-Pro
Input price	$10/M tokens	$1/M tokens
Output price	$50/M tokens	$3/M tokens
Context window	1.1M tokens	1.0M tokens
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	Sep 2026	Apr 2026