What is the difference between Google: Gemma 4 31B and GPT-5 Mini?

Google: Gemma 4 31B is developed by Google AI while GPT-5 Mini is developed by OpenAI. You can compare their actual outputs across 45 challenges on Rival to see how they differ in practice.

Which is better, Google: Gemma 4 31B or GPT-5 Mini?

It depends on your use case. Google: Gemma 4 31B and GPT-5 Mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 45 challenges so you can judge which fits your needs best.

How much does Google: Gemma 4 31B cost compared to GPT-5 Mini?

Google: Gemma 4 31B costs $0.14/M input tokens and GPT-5 Mini costs $0.25/M input tokens. Google: Gemma 4 31B is $0.11/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-5 Mini on Rival?

This page shows a side-by-side comparison of Google: Gemma 4 31B and GPT-5 Mini 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-5 Mini?

Google: Gemma 4 31B is developed by Google AI while GPT-5 Mini is developed by OpenAI. You can compare their actual outputs across 45 challenges on Rival to see how they differ in practice.

Which is better, Google: Gemma 4 31B or GPT-5 Mini?

It depends on your use case. Google: Gemma 4 31B and GPT-5 Mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 45 challenges so you can judge which fits your needs best.

How much does Google: Gemma 4 31B cost compared to GPT-5 Mini?

Google: Gemma 4 31B costs $0.14/M input tokens and GPT-5 Mini costs $0.25/M input tokens. Google: Gemma 4 31B is $0.11/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-5 Mini on Rival?

This page shows a side-by-side comparison of Google: Gemma 4 31B and GPT-5 Mini 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-5 Mini: Which Is Better?

Rival

Updated Apr 2026

Our Verdict

Google: Gemma 4 31B

GPT-5 MiniRunner-up

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

Google: Gemma 4 31B is 5.0x 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

1.8× cheaper

Output

$0.40

5.0× cheaper

GPT-5 Mini

Input

$0.25

Output

$2.00

Google: Gemma 4 31B is cheaper on both — 1.8× input, 5.0× output

Writing DNA

Style Comparison

Similarity

42%

Google: Gemma 4 31B uses 707.4x more bold

Google: Gemma 4 31B

GPT-5 Mini

57%Vocabulary62%

18wSentence Length21w

0.37Hedging0.16

7.1Bold0.0

4.0Lists3.4

0.24Emoji0.00

0.94Headings0.00

0.16Transitions0.05

Based on 23 + 15 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5 Mini vs MiniMax M3New provider

GPT-5 Mini vs Grok 3New provider

GPT-5 Mini vs Llama 4 MaverickNew provider

Rival

Updated Apr 2026

Our Verdict

Google: Gemma 4 31B

GPT-5 MiniRunner-up

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

Google: Gemma 4 31B is 5.0x 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

1.8× cheaper

Output

$0.40

5.0× cheaper

GPT-5 Mini

Input

$0.25

Output

$2.00

Google: Gemma 4 31B is cheaper on both — 1.8× input, 5.0× output

Writing DNA

Style Comparison

Similarity

42%

Google: Gemma 4 31B uses 707.4x more bold

Google: Gemma 4 31B

GPT-5 Mini

57%Vocabulary62%

18wSentence Length21w

0.37Hedging0.16

7.1Bold0.0

4.0Lists3.4

0.24Emoji0.00

0.94Headings0.00

0.16Transitions0.05

Based on 23 + 15 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5 Mini vs MiniMax M3New provider

GPT-5 Mini vs Grok 3New provider

GPT-5 Mini vs Llama 4 MaverickNew provider

Rival