Claude Opus 4.1 (batch) reasoning

openrouter
anthropic
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...

Capabilities

Context Window 200k tokens
Max Output 32k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $7.50
Output $37.50
Cache Read $0.75
Cache Write $9.38

Supported Parameters

include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetools