{"id":"muse-spark-1-1","slug":"muse-spark-1-1","name":"Muse Spark 1.1","orgId":"meta","family":"muse-spark-1-1","releaseDate":"2026-07-09","availability":"ga","openWeights":false,"license":"Proprietary","paramsTotal":null,"contextWindow":1048576,"knowledgeCutoff":null,"modelCardUrl":"https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset","hfRepo":null,"modalities":["text","image","video","file"],"aliases":["muse-spark-1.1","Muse Spark 1.1","muse-spark-1.1_medium","meta/muse-spark-1.1","Meta: Muse Spark 1.1"],"aliasNote":null,"organization":{"id":"meta","name":"Meta","slug":"meta","country":null,"url":null,"color":"#7B61FF","mark":"M"},"price":{"modelId":"muse-spark-1-1","provider":"meta","inputPerM":null,"outputPerM":null,"blendedPerM":2.0000000000000004,"tokensPerS":null,"observedAt":"2026-10-14","sourceId":"openrouter"},"answer":{"word":"It used to be.","scope":"Was SOTA in General LLM.","lead":"As of Oct 14, 2026, Muse Spark 1.1 from Meta. Was SOTA in General LLM. Was SOTA in General LLM from 2026-07-20 to 2026-07-27. Currently ranked #10.","confidence":"medium"},"verdicts":[{"id":"v_overall_general-llm_muse-spark-1-1_2026-07-20_open_WAS_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"general-llm","category_name":"General LLM","slice":"overall","state":"WAS_SOTA","rank":10,"margin":6.206896551724142,"confidence":"medium","valid_from":"2026-07-20","valid_to":null,"configuration":null,"rationale":"Was SOTA in General LLM from 2026-07-20 to 2026-07-27. Currently ranked #10.","safeguard_flags":["dethroned"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Was SOTA · General LLM"},{"id":"v_pareto_general-llm_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"general-llm","category_name":"General LLM","slice":"pareto","state":"NOT_SOTA","rank":10,"margin":4.7872340425531945,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Not on the General LLM cost-quality frontier.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #10"},{"id":"v_overall_reasoning_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"reasoning","category_name":"Reasoning","slice":"overall","state":"NOT_SOTA","rank":13,"margin":8.275862068965523,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Ranked #13 in Reasoning.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #13"},{"id":"v_pareto_reasoning_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"reasoning","category_name":"Reasoning","slice":"pareto","state":"NOT_SOTA","rank":13,"margin":6.38297872340425,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Not on the Reasoning cost-quality frontier.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #13"},{"id":"v_overall_math_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"math","category_name":"Math","slice":"overall","state":"NOT_SOTA","rank":16,"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Ranked #16 in Math.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #16"},{"id":"v_overall_coding_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"coding","category_name":"Coding","slice":"overall","state":"NOT_SOTA","rank":15,"margin":null,"confidence":"low","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Ranked #15 in Coding.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #15"},{"id":"v_overall_coding-web-dev_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"coding-web-dev","category_name":"Coding › Web dev","slice":"overall","state":"NOT_SOTA","rank":35,"margin":32.38095238095238,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Ranked #35 in Coding › Web dev.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #35"},{"id":"v_pareto_coding-web-dev_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"coding-web-dev","category_name":"Coding › Web dev","slice":"pareto","state":"NOT_SOTA","rank":37,"margin":29.032258064516128,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Not on the Coding › Web dev cost-quality frontier.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #37"},{"id":"v_overall_long-context_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"long-context","category_name":"Long context","slice":"overall","state":"NOT_SOTA","rank":32,"margin":21.23287671232876,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Ranked #32 in Long context.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #32"},{"id":"v_pareto_long-context_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"long-context","category_name":"Long context","slice":"pareto","state":"NOT_SOTA","rank":38,"margin":19.68085106382979,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Not on the Long context cost-quality frontier.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #38"},{"id":"v_overall_vision_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"vision","category_name":"Vision","slice":"overall","state":"NOT_SOTA","rank":26,"margin":73.52941176470588,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":"medium","rationale":"Ranked #26 in Vision.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #26"},{"id":"v_pareto_vision_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"vision","category_name":"Vision","slice":"pareto","state":"NOT_SOTA","rank":26,"margin":73.52941176470588,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":"medium","rationale":"Not on the Vision cost-quality frontier.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #26"},{"id":"v_overall_factuality_muse-spark-1-1_2026-07-14_open_WAS_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"factuality","category_name":"Factuality","slice":"overall","state":"WAS_SOTA","rank":31,"margin":22.727272727272734,"confidence":"medium","valid_from":"2026-07-14","valid_to":null,"configuration":null,"rationale":"Was SOTA in Factuality from 2026-07-14 to 2026-07-21. Currently ranked #31.","safeguard_flags":["dethroned"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Was SOTA · Factuality"},{"id":"v_pareto_factuality_muse-spark-1-1_2026-10-14_open_NOT_SOTA","model":"muse-spark-1-1","model_name":"Muse Spark 1.1","category":"factuality","category_name":"Factuality","slice":"pareto","state":"NOT_SOTA","rank":35,"margin":19.88304093567251,"confidence":"medium","valid_from":"2026-10-14","valid_to":null,"configuration":null,"rationale":"Not on the Factuality cost-quality frontier.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #35"}]}