Claude Sonnet 4
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
1M
Released
May 22, 2025
Input
ImageTextFile
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
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