Claude Sonnet 4.5 vs Google: Gemma 4 31B

Compare Claude Sonnet 4.5 by Anthropic against Google: Gemma 4 31B by Google AI, context windows of 200K vs 262K, tested across 36 shared challenges. Updated April 2026.

Which is better, Claude Sonnet 4.5 or Google: Gemma 4 31B?

Claude Sonnet 4.5 and Google: Gemma 4 31B are both competitive models. Claude Sonnet 4.5 costs $3/M input tokens vs $0.14/M for Google: Gemma 4 31B. Context windows: 200K vs 262K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Sonnet 4.5 and Google: Gemma 4 31B

Claude Sonnet 4.5 is made by anthropic while Google: Gemma 4 31B is from google. Claude Sonnet 4.5 has a 200K token context window compared to Google: Gemma 4 31B's 262K. On pricing, Claude Sonnet 4.5 costs $3/M input tokens vs $0.14/M for Google: Gemma 4 31B.

Our Verdict
Google: Gemma 4 31B
Google: Gemma 4 31B
Claude Sonnet 4.5
Claude Sonnet 4.5Runner-up

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

Google: Gemma 4 31B is 38x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
100%

Claude Sonnet 4.5 uses 5.1x more sentence length

Claude Sonnet 4.5
Google: Gemma 4 31B
64%Vocabulary57%
94wSentence Length18w
0.48Hedging0.37
4.9Bold7.1
8.0Lists4.0
0.45Emoji0.24
1.91Headings0.94
0.07Transitions0.16
Based on 20 + 23 text responses
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Claude Sonnet 4.5Google: Gemma 4 31B
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