Claude Sonnet 4.5
✅ ActiveHigh-performance Sonnet model with excellent coding abilities
Context Window
200K
Input Price
$3.00/1M
Output Price
$15.00/1M
Released
Jan 15, 2026
Capabilities
textvisionextended-thinkingtool-usecode
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Get API Access →Version History
Jan 15, 2026New Release
Claude Sonnet 4.5 launched with improved coding performance