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Claude Haiku 4.5 vs LongCat-2.0

Claude Haiku 4.5 leads in 5 of 8 categories

Arena ELO

Claude Haiku 4.5

Cheaper

Claude Haiku 4.5

Faster

Claude Haiku 4.5

Detailed Comparison

CategoryClaude Haiku 4.5LongCat-2.0
ProviderAnthropic Meituan
Context Window200K WIN128K
Input Price ($/1M)$0.8 WINN/A
Output Price ($/1M)$4 WINN/A
Arena ELO1290 WINN/A
Codingunknown N/A
Reasoningunknown N/A
Speed (tokens/sec)~120 t/s WINN/A
Open SourceNo Yes

Frequently Asked Questions

Which is better for coding, Claude Haiku 4.5 or LongCat-2.0?

Claude Haiku 4.5 scores unknown on coding benchmarks, while LongCat-2.0 scores N/A.

Which has a larger context window?

Claude Haiku 4.5 supports 200K context, while LongCat-2.0 supports 128K.

Is Claude Haiku 4.5 or LongCat-2.0 open source?

Claude Haiku 4.5 is proprietary. LongCat-2.0 is open source.

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