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anthropic
anthropicAnthropic: Claude Sonnet 5
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,...
anthropic/claude-sonnet-5
Context Size
1,000K
Input Price
300,000 pts/M
Output Price
1,500,000 pts/M
Architecture
Text
Image
File
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity
Details
TokenizerClaude
Max Completion128,000 tokens
Provider Context1,000K tokens
ModeratedYes
CreatedJun 30, 2026