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  5. Claude 3 SonnetvsGemma 4 31B
Updated Apr 2026

Claude 3 SonnetvsGemma 4 31B

Gemma 4 31B is cheaper than Claude 3 Sonnet at $0.14/M vs $3/M input tokens.

Claude 3 Sonnet and Gemma 4 31B compared across 9 shared prompts
SpecClaude 3 SonnetGemma 4 31B
Input price$3/M tokens$0.14/M tokens
Output price$15/M tokens$0.4/M tokens
Context window—262K tokens
Weights—Open
Free API (OpenRouter)NoYes (1 provider)
ReleasedMar 2024Apr 2026
Our Verdict
Gemma 4 31B
Gemma 4 31B
Claude 3 Sonnet
Claude 3 SonnetRunner-up

Not enough votes to call it. On the specs, Gemma 4 31B has the edge: bigger model tier, newer, bigger context window.

Gemma 4 31B costs 38x less per token.

Too close to call
API pricing

Cost per 1M tokens

Claude 3 Sonnet
Input
$3.00
Output
$15.00
Gemma 4 31B
Input
$0.14
21× cheaper
Output
$0.40
38× cheaper

Gemma 4 31B is cheaper on both: 21× input, 38× output.

Where to run it

13 hosts, cheapest first

Claude 3 Sonnet

No hosts listed on OpenRouter.

Gemma 4 31B13 hosts
HostInOutContextUptime
DDeepInfrafp4$0.09 in·$0.34 out·262k·99.2% upCCoreWeavefp4$0.10 in·$0.34 out·262k·98.8% upVVenicebf16$0.12 in·$0.36 out·256k·97.4% upCChutesfp4$0.12 in·$0.37 out·131k·73.6% upSSiliconFlowfp8$0.13 in·$0.40 out·262k·79.1% upCCrusoe$0.14 in·$0.40 out·262k·98.2% up
7 more hostsFewer hosts
FFriendli$0.14 in·$0.40 out·262k·99.6% upNNovitabf16$0.14 in·$0.40 out·262k·94.1% upPParasailfp8$0.15 in·$0.40 out·262k·99.5% upSSambaNova$0.38 in·$1.15 out·262k·98.6% upMModelRunfp4$0.75 in·$1.00 out·262k·99.9% upTTogetherdegraded$0.39 in·$0.97 out·262k·93.2% upCCerebrasfp16degraded$0.99 in·$1.49 out·131k·97.3% up

Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.

Writing DNA

Style Comparison

Similarity
48%

Gemma 4 31B uses 707.4x more bold

Claude 3 Sonnet
Gemma 4 31B
48%Vocabulary57%
14wSentence Length18w
0.32Hedging0.37
0.0Bold7.1
3.6Lists4.0
0.00Emoji0.24
0.00Headings0.94
0.38Transitions0.16
Based on 4 + 23 text responses
Research

What we learned reading every model

FAQ

Common questions

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