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DeepSeek V4 vs Gemini 2.5 Flash

Gemini 2.5 Flash leads in 4 of 8 categories

Arena ELO

Gemini 2.5 Flash

Cheaper

Gemini 2.5 Flash

Faster

Gemini 2.5 Flash

Detailed Comparison

CategoryDeepSeek V4Gemini 2.5 Flash
ProviderDeepSeek Google
Context Window128K 1M WIN
Input Price ($/1M)$0.435 $0.3 WIN
Output Price ($/1M)$0.87 WIN$2.5
Arena ELON/A 1362 WIN
CodingN/A unknown
ReasoningN/A unknown
Speed (tokens/sec)N/A ~150 t/s WIN
Open SourceYes No

Frequently Asked Questions

Which is cheaper, DeepSeek V4 or Gemini 2.5 Flash?

DeepSeek V4 is approximately 53% cheaper than Gemini 2.5 Flash per million tokens.

Which is better for coding, DeepSeek V4 or Gemini 2.5 Flash?

DeepSeek V4 scores N/A on coding benchmarks, while Gemini 2.5 Flash scores unknown.

Which has a larger context window?

DeepSeek V4 supports 128K context, while Gemini 2.5 Flash supports 1M.

Is DeepSeek V4 or Gemini 2.5 Flash open source?

DeepSeek V4 is open source. Gemini 2.5 Flash is proprietary.