Claude Sonnet 5 reasoning

openrouter
anthropic
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,...

Capabilities

Context Window 1M tokens
Max Output 128k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $2.00
Output $10.00
Cache Read $0.20
Cache Write $2.50

Supported Parameters

include_reasoningmax_completion_tokensmax_tokensreasoningresponse_formatstopstructured_outputstool_choicetoolsverbosity

Move Chat

Select a destination folder:

Move Folder

Select a parent folder:

Folder Settings