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Sonnet 4.5
by Anthropic
Knowledge cutoffJan 2025
Context window1M tokens
Release dateSep 2025
Prompts ≤ 200k tokens
Input
$3.00 / 1M tokensOutput
$15.00 / 1M tokensPrompts > 200k tokens
Input
$6.00 / 1M tokensOutput
$22.50 / 1M tokensAnthropic's best model for coding and complex tasks.
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