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DeepSeek V4 vs Grok 4.5

DeepSeek V4 leads in 2 of 8 categories

Arena ELO

Tie

Cheaper

DeepSeek V4

Faster

Tie

Detailed Comparison

CategoryDeepSeek V4Grok 4.5
ProviderDeepSeek xAI
Context Window128K 128K
Input Price ($/1M)$0.435 WINN/A
Output Price ($/1M)$0.87 WINN/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?

DeepSeek V4 supports 128K context, while Grok 4.5 supports 128K.

Is DeepSeek V4 or Grok 4.5 open source?

DeepSeek V4 is open source. Grok 4.5 is proprietary.