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Claude Opus 4.7 vs Claude Opus 4.8

Claude Opus 4.8 leads in 3 of 8 categories

Arena ELO

Claude Opus 4.7

Cheaper

Claude Opus 4.8

Faster

Tie

Detailed Comparison

CategoryClaude Opus 4.7Claude Opus 4.8
ProviderAnthropic Anthropic
Context Window128K 200K WIN
Input Price ($/1M)N/A $5 WIN
Output Price ($/1M)N/A $25 WIN
Arena ELO1567 WINN/A
CodingN/A N/A
ReasoningN/A N/A
Speed (tokens/sec)N/A N/A
Open SourceNo No

Frequently Asked Questions

Which has a larger context window?

Claude Opus 4.7 supports 128K context, while Claude Opus 4.8 supports 200K.

Is Claude Opus 4.7 or Claude Opus 4.8 open source?

Claude Opus 4.7 is proprietary. Claude Opus 4.8 is proprietary.

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