Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Specifications
- Provider
- Anthropic
- Type
- Vendor / proprietary
- Modality
- text+image+file->text
- Context window
- 1M
- Released
- June 30, 2026
Capabilities
Input: textInput: imageInput: fileOutput: textConfigurable reasoning effort
Strengths
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity
