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DeepSeek R1 vs DeepSeek V4 Flash

Both models are evenly matched

Arena ELO

DeepSeek R1

Cheaper

DeepSeek V4 Flash

Faster

DeepSeek R1

Detailed Comparison

CategoryDeepSeek R1DeepSeek V4 Flash
ProviderDeepSeek DeepSeek
Context Window128K 128K
Input Price ($/1M)$0.55 $0.14 WIN
Output Price ($/1M)$2.19 $0.28 WIN
Arena ELO1368 WINN/A
Codingunknown N/A
Reasoning#1 Math & Coding Arena N/A
Speed (tokens/sec)~45 t/s WINN/A
Open SourceYes Yes

Frequently Asked Questions

Which is cheaper, DeepSeek R1 or DeepSeek V4 Flash?

DeepSeek V4 Flash is approximately 85% cheaper than DeepSeek R1 per million tokens.

Which is better for coding, DeepSeek R1 or DeepSeek V4 Flash?

DeepSeek R1 scores unknown on coding benchmarks, while DeepSeek V4 Flash scores N/A.

Which has a larger context window?

DeepSeek R1 supports 128K context, while DeepSeek V4 Flash supports 128K.

Is DeepSeek R1 or DeepSeek V4 Flash open source?

DeepSeek R1 is open source. DeepSeek V4 Flash is open source.