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Gemma 4 vs Grok 4.5

Both models are evenly matched

Arena ELO

Tie

Cheaper

Tie

Faster

Tie

Detailed Comparison

CategoryGemma 4Grok 4.5
ProviderGoogle xAI
Context Window128K 128K
Input Price ($/1M)N/A N/A
Output Price ($/1M)N/A N/A
Arena ELON/A N/A
CodingN/A N/A
ReasoningN/A N/A
Speed (tokens/sec)N/A N/A
Open SourceYes No

Frequently Asked Questions

Which has a larger context window?

Gemma 4 supports 128K context, while Grok 4.5 supports 128K.

Is Gemma 4 or Grok 4.5 open source?

Gemma 4 is open source. Grok 4.5 is proprietary.

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