{"id":"claude-3-opus","slug":"claude-3-opus","name":"Claude 3 Opus","orgId":"anthropic","family":"claude-3-opus","releaseDate":"2024-02-29","availability":"ga","openWeights":false,"license":"Proprietary","paramsTotal":null,"contextWindow":null,"knowledgeCutoff":null,"modelCardUrl":"https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset","hfRepo":null,"modalities":["text","vision"],"aliases":["claude-3-opus-20240229","Claude 3 Opus"],"aliasNote":null,"organization":{"id":"anthropic","name":"Anthropic","slug":"anthropic","country":null,"url":null,"color":"#D97757","mark":"A"},"price":null,"answer":{"word":"No.","scope":"Best recorded rank is #9 in General LLM.","lead":"As of Oct 14, 2026, Claude 3 Opus from Anthropic. Best recorded rank is #9 in General LLM. Last listed at #9 in General LLM on 2024-09-27.","confidence":"low"},"verdicts":[{"id":"v_overall_general-llm_claude-3-opus_2026-10-14_open_RANKED","model":"claude-3-opus","model_name":"Claude 3 Opus","category":"general-llm","category_name":"General LLM","slice":"overall","state":"RANKED","rank":9,"present_evidence":[],"missing_evidence":[],"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Last listed at #9 in General LLM on 2024-09-27.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"#9 in General LLM"},{"id":"v_overall_reasoning_claude-3-opus_2026-10-14_open_INSUFFICIENT_DATA","model":"claude-3-opus","model_name":"Claude 3 Opus","category":"reasoning","category_name":"Reasoning","slice":"overall","state":"INSUFFICIENT_DATA","rank":null,"present_evidence":[{"benchmark":"lmarena-text-hard","name":"LMArena Text (style-controlled, hard prompts)","rank":9}],"missing_evidence":[{"benchmark":"hle","name":"Humanity's Last Exam"},{"benchmark":"gpqa-diamond","name":"GPQA Diamond"}],"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"#9 on LMArena Text (style-controlled, hard prompts); missing Humanity's Last Exam and GPQA Diamond","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not enough data"},{"id":"v_overall_science_claude-3-opus_2026-10-14_open_RANKED","model":"claude-3-opus","model_name":"Claude 3 Opus","category":"science","category_name":"Science","slice":"overall","state":"RANKED","rank":138,"present_evidence":[],"missing_evidence":[],"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Last listed at #138 in Science on 2024-02-29. That board does not award a crown.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"#138 in Science"},{"id":"v_overall_vision_claude-3-opus_2026-10-14_open_INSUFFICIENT_DATA","model":"claude-3-opus","model_name":"Claude 3 Opus","category":"vision","category_name":"Vision","slice":"overall","state":"INSUFFICIENT_DATA","rank":null,"present_evidence":[{"benchmark":"lmarena-vision","name":"LMArena Vision (style-controlled)","rank":102}],"missing_evidence":[{"benchmark":"gdp-pdf","name":"GDP.pdf"}],"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"#102 on LMArena Vision (style-controlled); missing GDP.pdf","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not enough data"},{"id":"v_overall_factuality_claude-3-opus_2026-10-14_open_INSUFFICIENT_DATA","model":"claude-3-opus","model_name":"Claude 3 Opus","category":"factuality","category_name":"Factuality","slice":"overall","state":"INSUFFICIENT_DATA","rank":null,"present_evidence":[{"benchmark":"simpleqa","name":"SimpleQA Verified","rank":74}],"missing_evidence":[{"benchmark":"lmarena-factuality","name":"LMArena Text factuality"}],"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"#74 on SimpleQA Verified; missing LMArena Text factuality","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not enough data"}]}