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Claude Opus 4.1

200KContext
$15In, per 1M
$75Out, per 1M
Lab
Anthropic
Released
5 Aug 2025
Context window
200K tokens
Longest answer
32K tokens
Input, per 1M tokens
$15
Output, per 1M tokens
$75
Reads images
Yes
Reasoning
Yes
Tool calling
Yes
Open weights
No
Answers in
text
Model id
anthropic/claude-opus-4.1