The final Claude 1 release, introducing the breakthrough 100K token context window. Claude 1.3 offered significantly improved long-document understanding and reasoning over earlier versions. This model has been retired and is no longer available for use.
Try NowLong document analysis on a budget
Basic reasoning over large inputs
Simple text-heavy workflow
100,000 tokens
4,096 tokens
$8 per 1M tokens
$24 per 1M tokens
$15 per 1K calls
$0.19 per 1K calls