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

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

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

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

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

GPT-6 Astra Pro costs $10/M input tokens and MiMo-V2.5 costs $0.4/M input tokens. MiMo-V2.5 is $9.60/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 Pro and MiMo-V2.5 on Rival?

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

MiMo-V2.5 is cheaper than GPT-6 Astra Pro at $0.4/M vs $10/M input tokens.

GPT-6 Astra Pro and MiMo-V2.5 compared across 6 shared prompts
Spec	GPT-6 Astra Pro	MiMo-V2.5
Input price	$10/M tokens	$0.4/M tokens
Output price	$50/M tokens	$2/M tokens
Context window	1.1M tokens	1.0M tokens
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	Sep 2026	Apr 2026

Our Verdict

GPT-6 Astra Pro

MiMo-V2.5Runner-up

Not enough votes to call it. On the specs, GPT-6 Astra Pro has the edge: bigger model tier, newer, major provider backing.

MiMo-V2.5 costs 25x less per token.

Slight edge

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-6 Astra Pro

Input

$10.00

Output

$50.00

MiMo-V2.5

Input

$0.40

25× cheaper

Output

$2.00

25× cheaper

MiMo-V2.5 is cheaper on both: 25× input, 25× output.

Where to run it

8 hosts, cheapest first

GPT-6 Astra Pro2 hosts

HostInOutContextUptime

Azure AI Foundry$10.00 in$50.00 out1.1M98.9% up OpenAI$10.00 in$50.00 out1.1M99.6% up

MiMo-V2.56 hosts

HostInOutContextUptime

DeepInfrafp8$0.13 in$0.27 out262k98.6% up Xiaomifp8$0.14 in$0.28 out1M97% up Novitafp8$0.17 in$0.34 out1M95.3% up StreamLake$0.17 in$0.34 out1M94.6% up Venicefp8$0.40 in$2.00 out1M96.3% up GMI Cloudfp8degraded$0.12 in$0.24 out1.1M72.7% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Cost per 1M tokens

8 hosts, cheapest first

What we learned reading every model

Common questions

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

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

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

How can I compare GPT-6 Astra Pro and MiMo-V2.5 on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages

Cost per 1M tokens

8 hosts, cheapest first

What we learned reading every model

Common questions

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

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

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

How can I compare GPT-6 Astra Pro and MiMo-V2.5 on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages