{"id":"anthropic/claude-opus-4.1","name":"Claude Opus 4.1","owned_by":"anthropic","description":"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...","context_window":200000,"max_tokens":32000,"type":"language","tags":["reasoning","tool-use","vision"],"released":1754411591,"modalities":{"input":["image","text","file"],"output":["text"]},"supported_parameters":["include_reasoning","max_tokens","reasoning","stop","temperature","tool_choice","tools","top_k","top_p"],"pricing":{"input":"0.000015","output":"0.000075","input_cache_read":"0.0000015","input_cache_write":"0.00001875"},"legal":[]}