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claude-sonnet-4-5-20250929-thinking

Anthropic · claude-sonnet-4-5-20250929-thinking

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Balanced Claude model for coding, analysis, agent workflows, and cost control

Specification

most-agreed values

Context
200K
Max output
64K
Released
2025-09-29
Knowledge cutoff
2025-03
Retires
—
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · most-agreed

Input
$3.00
Output
$15.00
Cache read
$0.30
Cache write
$3.75

Available from 1 host

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
302ai$3.00$15.00$0.30$3.75200K64K—

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