Claude Opus 4.5 (batch) reasoning

openrouter
anthropic
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...

Capabilities

Context Window 200k tokens
Max Output 64k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $2.50
Output $12.50
Cache Read $0.25
Cache Write $3.12

Supported Parameters

include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolsverbosity