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Opus 4.5
by Anthropic
Knowledge cutoffMar 2025
Context window200k tokens
Release dateNov 2025
Input
$5.00 / 1M tokensOutput
$25.00 / 1M tokensCached
$0.50 / 1M tokensCache write
$6.25 / 1M tokensAnthropic's most powerful model. It’s intelligent, efficient, and the best model in the world for coding, agents, and computer use.
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