[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-gpt-53-codex-vs-muse-spark":3},{"modelA":4,"modelB":9,"categories":14,"faq":49,"winsA":56,"winsB":57,"relatedArticles":58,"otherComparisons":63},{"name":5,"provider":6,"pricing":7,"highlights":8},"GPT-5.3-Codex","OpenAI","$1.75\u002F$14","Coding-oriented OpenAI model referenced in June 2026 pricing coverage with strong developer-task performance.",{"name":10,"provider":11,"pricing":12,"highlights":13},"Muse Spark","Meta",null,"Muse Spark achieves its reasoning capabilities using over an order of magnitude less compute than Llama 4 Maverick.",[15,19,25,29,33,36,39,42,45],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":23,"winner":24},"context","Context Window","128K","N\u002FA","a",{"key":26,"label":27,"valueA":28,"valueB":23,"winner":24},"pricingInput","Input Price ($\u002F1M)","$1.75",{"key":30,"label":31,"valueA":32,"valueB":23,"winner":24},"pricingOutput","Output Price ($\u002F1M)","$14",{"key":34,"label":35,"valueA":23,"valueB":23,"winner":18},"arena","Arena ELO",{"key":37,"label":38,"valueA":23,"valueB":23,"winner":18},"coding","Coding",{"key":40,"label":41,"valueA":23,"valueB":23,"winner":18},"reasoning","Reasoning",{"key":43,"label":44,"valueA":23,"valueB":23,"winner":18},"speed","Speed (tokens\u002Fsec)",{"key":46,"label":47,"valueA":48,"valueB":48,"winner":18},"openSource","Open Source","No",[50,53],{"question":51,"answer":52},"Which has a larger context window?","GPT-5.3-Codex supports 128K context, while Muse Spark supports N\u002FA.",{"question":54,"answer":55},"Is GPT-5.3-Codex or Muse Spark open source?","GPT-5.3-Codex is proprietary. Muse Spark is proprietary.",3,0,[59],{"slug":60,"title":61,"language":62},"muse-autoskill-reusable-agent-skills-en","MUSE-Autoskill makes agent skills reusable","en",[64,69,74,79,84,89,94,99],{"slugA":65,"labelA":66,"slugB":67,"labelB":68},"claude-opus-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Opus 4.5","claude-opus-45-vs-muse-spark","Muse Spark vs Claude Opus 4.5",{"slugA":70,"labelA":71,"slugB":72,"labelB":73},"gpt-53-codex-vs-llama-4-scout","GPT-5.3-Codex vs Llama 4 Scout","llama-4-scout-vs-muse-spark","Muse Spark vs Llama 4 Scout",{"slugA":75,"labelA":76,"slugB":77,"labelB":78},"claude-sonnet-46-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Sonnet 4.6","claude-sonnet-46-vs-muse-spark","Muse Spark vs Claude Sonnet 4.6",{"slugA":80,"labelA":81,"slugB":82,"labelB":83},"claude-haiku-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Haiku 4.5","claude-haiku-45-vs-muse-spark","Muse Spark vs Claude Haiku 4.5",{"slugA":85,"labelA":86,"slugB":87,"labelB":88},"glm-52-vs-gpt-53-codex","GPT-5.3-Codex vs GLM-5.2","glm-52-vs-muse-spark","Muse Spark vs GLM-5.2",{"slugA":90,"labelA":91,"slugB":92,"labelB":93},"gpt-53-codex-vs-qwen-36","GPT-5.3-Codex vs Qwen 3.6","muse-spark-vs-qwen-36","Muse Spark vs Qwen 3.6",{"slugA":95,"labelA":96,"slugB":97,"labelB":98},"gpt-4o-vs-gpt-53-codex","GPT-5.3-Codex vs GPT-4o","gpt-4o-vs-muse-spark","Muse Spark vs GPT-4o",{"slugA":100,"labelA":101,"slugB":102,"labelB":103},"deepseek-r1-vs-gpt-53-codex","GPT-5.3-Codex vs DeepSeek R1","deepseek-r1-vs-muse-spark","Muse Spark vs DeepSeek R1"]