What is the difference between xAI: Grok 4.5 and MiMo-V2-Omni?

xAI: Grok 4.5 is developed by xAI while MiMo-V2-Omni is developed by Xiaomi. xAI: Grok 4.5 has a 500K token context window vs MiMo-V2-Omni's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, xAI: Grok 4.5 or MiMo-V2-Omni?

It depends on your use case. xAI: Grok 4.5 and MiMo-V2-Omni 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 xAI: Grok 4.5 cost compared to MiMo-V2-Omni?

xAI: Grok 4.5 costs $2/M input tokens and MiMo-V2-Omni costs $0.4/M input tokens. MiMo-V2-Omni is $1.60/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 xAI: Grok 4.5 and MiMo-V2-Omni on Rival?

This page shows a side-by-side comparison of xAI: Grok 4.5 and MiMo-V2-Omni 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.

What is the difference between xAI: Grok 4.5 and MiMo-V2-Omni?

xAI: Grok 4.5 is developed by xAI while MiMo-V2-Omni is developed by Xiaomi. xAI: Grok 4.5 has a 500K token context window vs MiMo-V2-Omni's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, xAI: Grok 4.5 or MiMo-V2-Omni?

It depends on your use case. xAI: Grok 4.5 and MiMo-V2-Omni 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 xAI: Grok 4.5 cost compared to MiMo-V2-Omni?

xAI: Grok 4.5 costs $2/M input tokens and MiMo-V2-Omni costs $0.4/M input tokens. MiMo-V2-Omni is $1.60/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 xAI: Grok 4.5 and MiMo-V2-Omni on Rival?

This page shows a side-by-side comparison of xAI: Grok 4.5 and MiMo-V2-Omni 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.

xAI: Grok 4.5 vs MiMo-V2-Omni: Which Is Better?

Updated Jul 2026

Our Verdict

xAI: Grok 4.5

MiMo-V2-OmniRunner-up

No community votes yet. On paper, xAI: Grok 4.5 has the edge — newer, bigger context window, major provider backing.

MiMo-V2-Omni is 3.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

xAI: Grok 4.5

Input

$2.00

Output

$6.00

MiMo-V2-Omni

Input

$0.40

5.0× cheaper

Output

$2.00

3.0× cheaper

MiMo-V2-Omni is cheaper on both — 5.0× input, 3.0× output

Writing DNA

Style Comparison

Similarity

33%

MiMo-V2-Omni uses 3.2x more hedging

xAI: Grok 4.5

MiMo-V2-Omni

61%Vocabulary59%

16wSentence Length23w

0.23Hedging0.72

2.5Bold7.2

2.4Lists3.6

0.09Emoji0.26

0.48Headings1.25

0.06Transitions0.10

Based on 27 + 23 text responses

Research

What we learned reading every model

xAI: Grok 4.5 and MiMo-V2-Omni have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

xAI: Grok 4.5 vs MiniMax M3New provider

xAI: Grok 4.5 vs GPT-5New provider

xAI: Grok 4.5 vs Claude Sonnet 4New provider

Updated Jul 2026

Our Verdict

xAI: Grok 4.5

MiMo-V2-OmniRunner-up

No community votes yet. On paper, xAI: Grok 4.5 has the edge — newer, bigger context window, major provider backing.

MiMo-V2-Omni is 3.0x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

xAI: Grok 4.5

Input

$2.00

Output

$6.00

MiMo-V2-Omni

Input

$0.40

5.0× cheaper

Output

$2.00

3.0× cheaper

MiMo-V2-Omni is cheaper on both — 5.0× input, 3.0× output

Writing DNA

Style Comparison

Similarity

33%

MiMo-V2-Omni uses 3.2x more hedging

xAI: Grok 4.5

MiMo-V2-Omni

61%Vocabulary59%

16wSentence Length23w

0.23Hedging0.72

2.5Bold7.2

2.4Lists3.6

0.09Emoji0.26

0.48Headings1.25

0.06Transitions0.10

Based on 27 + 23 text responses

Research

What we learned reading every model

xAI: Grok 4.5 and MiMo-V2-Omni have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

xAI: Grok 4.5 vs MiniMax M3New provider

xAI: Grok 4.5 vs GPT-5New provider

xAI: Grok 4.5 vs Claude Sonnet 4New provider