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Claude Haiku 4.5 vs Claude Opus 4.8

Claude Haiku 4.5 leads in 4 of 8 categories

Arena ELO

Claude Haiku 4.5

Cheaper

Claude Haiku 4.5

Faster

Claude Haiku 4.5

Detailed Comparison

CategoryClaude Haiku 4.5Claude Opus 4.8
ProviderAnthropic Anthropic
Context Window200K 200K
Input Price ($/1M)$0.8 WIN$5
Output Price ($/1M)$4 WIN$25
Arena ELO1290 WINN/A
Codingunknown N/A
Reasoningunknown N/A
Speed (tokens/sec)~120 t/s WINN/A
Open SourceNo No

Frequently Asked Questions

Which is cheaper, Claude Haiku 4.5 or Claude Opus 4.8?

Claude Haiku 4.5 is approximately 84% cheaper than Claude Opus 4.8 per million tokens.

Which is better for coding, Claude Haiku 4.5 or Claude Opus 4.8?

Claude Haiku 4.5 scores unknown on coding benchmarks, while Claude Opus 4.8 scores N/A.

Which has a larger context window?

Claude Haiku 4.5 supports 200K context, while Claude Opus 4.8 supports 200K.

Is Claude Haiku 4.5 or Claude Opus 4.8 open source?

Claude Haiku 4.5 is proprietary. Claude Opus 4.8 is proprietary.

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