{"id":"muse-spark","slug":"muse-spark","name":"Muse Spark","orgId":"meta","family":"muse-spark","releaseDate":"2026-04-08","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"],"aliases":["muse-spark","Muse Spark"],"aliasNote":null,"organization":{"id":"meta","name":"Meta","slug":"meta","country":null,"url":null,"color":"#7B61FF","mark":"M"},"price":null,"answer":{"word":"Yes.","scope":"SOTA in co-SOTA in Math.","lead":"As of Oct 13, 2026, Muse Spark from Meta. SOTA in co-SOTA in Math. Muse Spark is tied for SOTA in Math with Gemini 3.1 Pro Preview, GPT-5.4 Pro, within the margin of error, since 2026-04-16.","confidence":"medium"},"verdicts":[{"id":"v_overall_general-llm_muse-spark_2026-05-18_open_WAS_SOTA","model":"muse-spark","model_name":"Muse Spark","category":"general-llm","category_name":"General LLM","slice":"overall","state":"WAS_SOTA","rank":null,"margin":null,"confidence":"medium","valid_from":"2026-05-18","valid_to":null,"configuration":null,"rationale":"Was SOTA in General LLM from 2026-05-18 to 2026-06-16.","safeguard_flags":["dethroned"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Was SOTA · General LLM"},{"id":"v_overall_reasoning_muse-spark_2026-04-14_open_WAS_SOTA","model":"muse-spark","model_name":"Muse Spark","category":"reasoning","category_name":"Reasoning","slice":"overall","state":"WAS_SOTA","rank":null,"margin":null,"confidence":"medium","valid_from":"2026-04-14","valid_to":null,"configuration":null,"rationale":"Was SOTA in Reasoning from 2026-04-14 to 2026-04-20.","safeguard_flags":["dethroned"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Was SOTA · Reasoning"},{"id":"v_overall_math_muse-spark_2026-04-16_open_CO_SOTA","model":"muse-spark","model_name":"Muse Spark","category":"math","category_name":"Math","slice":"overall","state":"CO_SOTA","rank":6,"margin":0,"confidence":"medium","valid_from":"2026-04-16","valid_to":null,"configuration":null,"rationale":"Muse Spark is tied for SOTA in Math with Gemini 3.1 Pro Preview, GPT-5.4 Pro, within the margin of error, since 2026-04-16.","safeguard_flags":["two_signal_pending"],"co_sota_with":["gemini-3-1-pro-preview","gpt-5-4-pro"],"challengers":["gpt-6-astra"],"methodology":"1.0","label":"Co-SOTA · Math"},{"id":"v_overall_science_muse-spark_2026-10-13_open_NOT_SOTA","model":"muse-spark","model_name":"Muse Spark","category":"science","category_name":"Science","slice":"overall","state":"NOT_SOTA","rank":45,"margin":null,"confidence":"low","valid_from":"2026-10-13","valid_to":null,"configuration":null,"rationale":"Last listed at #45 in Science on 2026-04-08. That board does not award a crown.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #45"},{"id":"v_overall_coding_muse-spark_2026-10-13_open_NOT_SOTA","model":"muse-spark","model_name":"Muse Spark","category":"coding","category_name":"Coding","slice":"overall","state":"NOT_SOTA","rank":6,"margin":null,"confidence":"low","valid_from":"2026-10-13","valid_to":null,"configuration":null,"rationale":"Last listed at #6 in Coding on 2026-07-02.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #6"},{"id":"v_overall_coding-web-dev_muse-spark_2026-10-13_open_NOT_SOTA","model":"muse-spark","model_name":"Muse Spark","category":"coding-web-dev","category_name":"Coding › Web dev","slice":"overall","state":"NOT_SOTA","rank":8,"margin":null,"confidence":"low","valid_from":"2026-10-13","valid_to":null,"configuration":null,"rationale":"Last listed at #8 in Coding › Web dev on 2026-06-05.","safeguard_flags":["off_board"],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #8"},{"id":"v_overall_vision_muse-spark_2026-10-13_open_NOT_SOTA","model":"muse-spark","model_name":"Muse Spark","category":"vision","category_name":"Vision","slice":"overall","state":"NOT_SOTA","rank":6,"margin":null,"confidence":"low","valid_from":"2026-10-13","valid_to":null,"configuration":null,"rationale":"Ranked #6 in Vision.","safeguard_flags":[],"co_sota_with":[],"challengers":[],"methodology":"1.0","label":"Not SOTA · #6"}]}