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DeepSeek V4-Pro vs GPT-5.4

GPT-5.4 leads in 5 of 8 categories

Arena ELO

GPT-5.4

Cheaper

GPT-5.4

Faster

GPT-5.4

Detailed Comparison

CategoryDeepSeek V4-ProGPT-5.4
ProviderDeepSeek OpenAI
Context Window128K 1M WIN
Input Price ($/1M)N/A $3 WIN
Output Price ($/1M)N/A $15 WIN
Arena ELON/A 1560 WIN
CodingN/A unknown
ReasoningN/A unknown
Speed (tokens/sec)N/A ~50 t/s WIN
Open SourceNo No

Frequently Asked Questions

Which is better for coding, DeepSeek V4-Pro or GPT-5.4?

DeepSeek V4-Pro scores N/A on coding benchmarks, while GPT-5.4 scores unknown.

Which has a larger context window?

DeepSeek V4-Pro supports 128K context, while GPT-5.4 supports 1M.

Is DeepSeek V4-Pro or GPT-5.4 open source?

DeepSeek V4-Pro is proprietary. GPT-5.4 is proprietary.