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Claude Opus 4.5

200KContext
$5In, per 1M
$25Out, per 1M
Lab
Anthropic
Released
24 Nov 2025
Context window
200K tokens
Longest answer
64K tokens
Input, per 1M tokens
$5
Output, per 1M tokens
$25
Reads images
Yes
Reasoning
Yes
Tool calling
Yes
Open weights
No
Answers in
text
Model id
anthropic/claude-opus-4.5