What is the difference between Google: Gemma 4 31B and GPT-4o (Omni)?

Google: Gemma 4 31B is developed by Google AI while GPT-4o (Omni) is developed by OpenAI. Google: Gemma 4 31B has a 262K token context window vs GPT-4o (Omni)'s 128K. You can compare their actual outputs across 44 challenges on Rival to see how they differ in practice.

Which is better, Google: Gemma 4 31B or GPT-4o (Omni)?

It depends on your use case. Google: Gemma 4 31B and GPT-4o (Omni) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 44 challenges so you can judge which fits your needs best.

How much does Google: Gemma 4 31B cost compared to GPT-4o (Omni)?

Google: Gemma 4 31B costs $0.14/M input tokens and GPT-4o (Omni) costs $2.5/M input tokens. Google: Gemma 4 31B is $2.36/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 Google: Gemma 4 31B and GPT-4o (Omni) on Rival?

This page shows a side-by-side comparison of Google: Gemma 4 31B and GPT-4o (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 Google: Gemma 4 31B and GPT-4o (Omni)?

Google: Gemma 4 31B is developed by Google AI while GPT-4o (Omni) is developed by OpenAI. Google: Gemma 4 31B has a 262K token context window vs GPT-4o (Omni)'s 128K. You can compare their actual outputs across 44 challenges on Rival to see how they differ in practice.

Which is better, Google: Gemma 4 31B or GPT-4o (Omni)?

It depends on your use case. Google: Gemma 4 31B and GPT-4o (Omni) each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 44 challenges so you can judge which fits your needs best.

How much does Google: Gemma 4 31B cost compared to GPT-4o (Omni)?

Google: Gemma 4 31B costs $0.14/M input tokens and GPT-4o (Omni) costs $2.5/M input tokens. Google: Gemma 4 31B is $2.36/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 Google: Gemma 4 31B and GPT-4o (Omni) on Rival?

This page shows a side-by-side comparison of Google: Gemma 4 31B and GPT-4o (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.

Google: Gemma 4 31B vs GPT-4o (Omni): Which Is Better?

Updated Apr 2026

Our Verdict

Google: Gemma 4 31B

GPT-4o (Omni)Runner-up

No community votes yet. On paper, Google: Gemma 4 31B has the edge — newer, bigger context window.

Google: Gemma 4 31B is 25x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Google: Gemma 4 31B

Input

$0.14

18× cheaper

Output

$0.40

25× cheaper

GPT-4o (Omni)

Input

$2.50

Output

$10.00

Google: Gemma 4 31B is cheaper on both — 18× input, 25× output

Writing DNA

Style Comparison

Similarity

60%

Google: Gemma 4 31B uses 9.5x more emoji

Google: Gemma 4 31B

GPT-4o (Omni)

57%Vocabulary54%

18wSentence Length18w

0.37Hedging0.72

7.1Bold7.3

4.0Lists5.6

0.24Emoji0.03

0.94Headings1.40

0.16Transitions0.26

Based on 23 + 24 text responses

Research

What we learned reading every model

Google: Gemma 4 31B and GPT-4o (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

Google: Gemma 4 31B vs GPT-5Cross-provider

Google: Gemma 4 31B vs Llama 4 MaverickNew provider

GPT-4o (Omni) vs MiniMax M3New provider

Updated Apr 2026

Our Verdict

Google: Gemma 4 31B

GPT-4o (Omni)Runner-up

No community votes yet. On paper, Google: Gemma 4 31B has the edge — newer, bigger context window.

Google: Gemma 4 31B is 25x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Google: Gemma 4 31B

Input

$0.14

18× cheaper

Output

$0.40

25× cheaper

GPT-4o (Omni)

Input

$2.50

Output

$10.00

Google: Gemma 4 31B is cheaper on both — 18× input, 25× output

Writing DNA

Style Comparison

Similarity

60%

Google: Gemma 4 31B uses 9.5x more emoji

Google: Gemma 4 31B

GPT-4o (Omni)

57%Vocabulary54%

18wSentence Length18w

0.37Hedging0.72

7.1Bold7.3

4.0Lists5.6

0.24Emoji0.03

0.94Headings1.40

0.16Transitions0.26

Based on 23 + 24 text responses

Research

What we learned reading every model

Google: Gemma 4 31B and GPT-4o (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

Google: Gemma 4 31B vs GPT-5Cross-provider

Google: Gemma 4 31B vs Llama 4 MaverickNew provider

GPT-4o (Omni) vs MiniMax M3New provider