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  5. Gemma 3n 2BvsOpenAI o3
Updated Jul 2025

Gemma 3n 2BvsOpenAI o3

Gemma 3n 2B is cheaper than OpenAI o3 at $0/M vs $10/M input tokens.

Gemma 3n 2B and OpenAI o3 compared across 27 shared prompts
SpecGemma 3n 2BOpenAI o3
Input priceFree$10/M tokens
Output priceFree$40/M tokens
Context window8K tokens—
WeightsOpenClosed
Free API (OpenRouter)NoNo
ReleasedJul 2025Apr 2025
Our Verdict
Gemma 3n 2B
Gemma 3n 2B
OpenAI o3
OpenAI o3

Not enough votes to call it. On the specs, nothing separates them.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemma 3n 2B
Input
$0.000
Output
$0.000
OpenAI o3
Input
$10.00
Output
$40.00
Where to run it

1 host

Gemma 3n 2B

No hosts listed on OpenRouter.

OpenAI o31 host
HostInOutContextUptime
OpenAI$2.00 in·$8.00 out·200k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 12 Sep 2026.

Writing DNA

Style Comparison

Similarity
25%

Gemma 3n 2B uses 11.0x more bold

Gemma 3n 2B
OpenAI o3
49%Vocabulary70%
14wSentence Length14w
0.46Hedging0.27
6.5Bold0.6
6.1Lists2.8
0.00Emoji0.00
0.19Headings0.32
0.23Transitions0.10
Based on 14 + 19 text responses
Research

What we learned reading every model

FAQ

Common questions

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Rival
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