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DeepSeek V4-Pro vs LongCat-2.0

Both models are evenly matched

Arena ELO

Tie

Cheaper

Tie

Faster

Tie

Detailed Comparison

CategoryDeepSeek V4-ProLongCat-2.0
ProviderDeepSeek Meituan
Context Window128K 128K
Input Price ($/1M)N/A N/A
Output Price ($/1M)N/A N/A
Arena ELON/A N/A
CodingN/A N/A
ReasoningN/A N/A
Speed (tokens/sec)N/A N/A
Open SourceNo Yes

Frequently Asked Questions

Which has a larger context window?

DeepSeek V4-Pro supports 128K context, while LongCat-2.0 supports 128K.

Is DeepSeek V4-Pro or LongCat-2.0 open source?

DeepSeek V4-Pro is proprietary. LongCat-2.0 is open source.