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Anthropic: Claude Opus 4.1
anthropic/claude-opus-4.1
VisionTool useJSONReasoningStreaming
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...
Pricing
Input
$15.00 / 1M
Output
$75.00 / 1M
Specs
Context
200,000 tokens
Input
image, text, file
Output
text
Knowledge cutoff: 2025-01-31
Released: 2025-08
Supported parameters
include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_p