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DeepSeek V4 Flash vs Gemini 2.5 Pro

Gemini 2.5 Pro leads in 3 of 8 categories

Arena ELO

Gemini 2.5 Pro

Cheaper

DeepSeek V4 Flash

Faster

Gemini 2.5 Pro

Detailed Comparison

CategoryDeepSeek V4 FlashGemini 2.5 Pro
ProviderDeepSeek Google
Context Window128K 1M WIN
Input Price ($/1M)$0.14 WIN$1.25
Output Price ($/1M)$0.28 WIN$10
Arena ELON/A 1458 WIN
CodingN/A 75.6% LiveCodeBench
ReasoningN/A 84.6% GPQA Diamond
Speed (tokens/sec)N/A ~60 t/s WIN
Open SourceYes No

Frequently Asked Questions

Which is cheaper, DeepSeek V4 Flash or Gemini 2.5 Pro?

DeepSeek V4 Flash is approximately 96% cheaper than Gemini 2.5 Pro per million tokens.

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

DeepSeek V4 Flash scores N/A on coding benchmarks, while Gemini 2.5 Pro scores 75.6% LiveCodeBench.

Which has a larger context window?

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

Is DeepSeek V4 Flash or Gemini 2.5 Pro open source?

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