Claude Sonnet 4
Archived
Anthropic🇺🇸
anthropic/claude-sonnet-4Claude Sonnet 4 is Anthropic's balanced mid-tier model from the Claude 4 generation, offering strong coding, reasoning, and agentic performance at lower cost than Opus. It is designed as a versatile default for everyday software engineering and assistant tasks.
Cost rate
3x
Context
200K
Released
May 22, 2025
Input
ImageTextFile
Output
Text
Support
ReasoningTool callingStructured outputs