What is the difference between Claude Opus 5 and Gemma 3 12B?

Claude Opus 5 is developed by Anthropic while Gemma 3 12B is developed by Google AI. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 5 or Gemma 3 12B?

It depends on your use case. Claude Opus 5 and Gemma 3 12B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Opus 5 cost compared to Gemma 3 12B?

Claude Opus 5 costs $5/M input tokens and Gemma 3 12B costs $0.03/M input tokens. Gemma 3 12B is $4.97/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 Claude Opus 5 and Gemma 3 12B on Rival?

This page shows a side-by-side comparison of Claude Opus 5 and Gemma 3 12B 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 Claude Opus 5 and Gemma 3 12B?

Claude Opus 5 is developed by Anthropic while Gemma 3 12B is developed by Google AI. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 5 or Gemma 3 12B?

It depends on your use case. Claude Opus 5 and Gemma 3 12B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Claude Opus 5 cost compared to Gemma 3 12B?

Claude Opus 5 costs $5/M input tokens and Gemma 3 12B costs $0.03/M input tokens. Gemma 3 12B is $4.97/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 Claude Opus 5 and Gemma 3 12B on Rival?

This page shows a side-by-side comparison of Claude Opus 5 and Gemma 3 12B 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.

Claude Opus 5 vs Gemma 3 12B: Which Is Better?

Updated Jul 2026

Our Verdict

Claude Opus 5

Gemma 3 12BRunner-up

No community votes yet. On paper, Claude Opus 5 has the edge — bigger model tier, newer, bigger context window.

Gemma 3 12B is 833x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Opus 5

Input

$5.00

Output

$25.00

Gemma 3 12B

Input

$0.03

167× cheaper

Output

$0.03

833× cheaper

Gemma 3 12B is cheaper on both — 167× input, 833× output

Writing DNA

Style Comparison

Similarity

33%

Claude Opus 5 uses 1.7x more emoji

Claude Opus 5

Gemma 3 12B

54%Vocabulary52%

21wSentence Length17w

0.40Hedging0.66

3.9Bold6.2

1.9Lists5.4

0.02Emoji0.00

0.71Headings0.06

0.05Transitions0.23

Based on 27 + 23 text responses

Research

What we learned reading every model

Claude Opus 5 and Gemma 3 12B 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

Gemma 3 12B vs MiniMax M3New provider

Gemma 3 12B vs GPT-5New provider

Gemma 3 12B vs Claude Opus 4Cross-provider

Updated Jul 2026

Our Verdict

Claude Opus 5

Gemma 3 12BRunner-up

No community votes yet. On paper, Claude Opus 5 has the edge — bigger model tier, newer, bigger context window.

Gemma 3 12B is 833x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Opus 5

Input

$5.00

Output

$25.00

Gemma 3 12B

Input

$0.03

167× cheaper

Output

$0.03

833× cheaper

Gemma 3 12B is cheaper on both — 167× input, 833× output

Writing DNA

Style Comparison

Similarity

33%

Claude Opus 5 uses 1.7x more emoji

Claude Opus 5

Gemma 3 12B

54%Vocabulary52%

21wSentence Length17w

0.40Hedging0.66

3.9Bold6.2

1.9Lists5.4

0.02Emoji0.00

0.71Headings0.06

0.05Transitions0.23

Based on 27 + 23 text responses

Research

What we learned reading every model

Claude Opus 5 and Gemma 3 12B 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

Gemma 3 12B vs MiniMax M3New provider

Gemma 3 12B vs GPT-5New provider

Gemma 3 12B vs Claude Opus 4Cross-provider