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DeepSeek V4 Flash vs GPT-4o

Both models are evenly matched

Arena ELO

GPT-4o

Cheaper

DeepSeek V4 Flash

Faster

GPT-4o

Detailed Comparison

CategoryDeepSeek V4 FlashGPT-4o
ProviderDeepSeek OpenAI
Context Window128K 128K
Input Price ($/1M)$0.14 WIN$2.5
Output Price ($/1M)$0.28 WIN$10
Arena ELON/A 1285 WIN
CodingN/A 30.8% SWE-bench
ReasoningN/A unknown
Speed (tokens/sec)N/A ~100 t/s WIN
Open SourceYes No

Frequently Asked Questions

Which is cheaper, DeepSeek V4 Flash or GPT-4o?

DeepSeek V4 Flash is approximately 97% cheaper than GPT-4o per million tokens.

Which is better for coding, DeepSeek V4 Flash or GPT-4o?

DeepSeek V4 Flash scores N/A on coding benchmarks, while GPT-4o scores 30.8% SWE-bench.

Which has a larger context window?

DeepSeek V4 Flash supports 128K context, while GPT-4o supports 128K.

Is DeepSeek V4 Flash or GPT-4o open source?

DeepSeek V4 Flash is open source. GPT-4o is proprietary.