Claude Sonnet 4.5
By anthropic
anthropic/claude-sonnet-4.5Claude Sonnet 4.5 is the newest model in the Sonnet series, offering improvements and updates over Sonnet 4.
ReleasedSep 29, 2025
Pricing
Pricing (Input)$3.00/M
Pricing (Output)$15.00/M
CachingYes
Limits
Context Length1M
Max Output Tokens64K
Input Modalities
TextSupported
ImageSupported
PDFSupported
AudioNot supported
Output Modalities
TextSupported
ImageNot supported
AudioNot supported
Features
ReasoningSupported
ToolsSupported
TemperatureSupported