[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-gpt-4o-vs-gpt-53-codex":3},{"modelA":4,"modelB":9,"categories":13,"faq":55,"winsA":68,"winsB":69,"relatedArticles":70,"otherComparisons":71},{"name":5,"provider":6,"pricing":7,"highlights":8},"GPT-4o","OpenAI","$2.5\u002F$10","Legacy but still available; superseded by GPT-5 family",{"name":10,"provider":6,"pricing":11,"highlights":12},"GPT-5.3-Codex","$1.75\u002F$14","Coding-oriented OpenAI model referenced in June 2026 pricing coverage with strong developer-task performance.",[14,18,22,28,34,39,43,47,51],{"key":15,"label":16,"valueA":6,"valueB":6,"winner":17},"provider","Provider","tie",{"key":19,"label":20,"valueA":21,"valueB":21,"winner":17},"context","Context Window","128K",{"key":23,"label":24,"valueA":25,"valueB":26,"winner":27},"pricingInput","Input Price ($\u002F1M)","$2.5","$1.75","b",{"key":29,"label":30,"valueA":31,"valueB":32,"winner":33},"pricingOutput","Output Price ($\u002F1M)","$10","$14","a",{"key":35,"label":36,"valueA":37,"valueB":38,"winner":33},"arena","Arena ELO","1285","N\u002FA",{"key":40,"label":41,"valueA":42,"valueB":38,"winner":17},"coding","Coding","30.8% SWE-bench",{"key":44,"label":45,"valueA":46,"valueB":38,"winner":17},"reasoning","Reasoning","unknown",{"key":48,"label":49,"valueA":50,"valueB":38,"winner":33},"speed","Speed (tokens\u002Fsec)","~100 t\u002Fs",{"key":52,"label":53,"valueA":54,"valueB":54,"winner":17},"openSource","Open Source","No",[56,59,62,65],{"question":57,"answer":58},"Which is cheaper, GPT-4o or GPT-5.3-Codex?","GPT-4o is approximately 21% cheaper than GPT-5.3-Codex per million tokens.",{"question":60,"answer":61},"Which is better for coding, GPT-4o or GPT-5.3-Codex?","GPT-4o scores 30.8% SWE-bench on coding benchmarks, while GPT-5.3-Codex scores N\u002FA.",{"question":63,"answer":64},"Which has a larger context window?","GPT-4o supports 128K context, while GPT-5.3-Codex supports 128K.",{"question":66,"answer":67},"Is GPT-4o or GPT-5.3-Codex open source?","GPT-4o is proprietary. GPT-5.3-Codex is proprietary.",3,1,[],[72,77,82,87,92,97,102,107],{"slugA":73,"labelA":74,"slugB":75,"labelB":76},"claude-opus-45-vs-gpt-4o","GPT-4o vs Claude Opus 4.5","claude-opus-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Opus 4.5",{"slugA":78,"labelA":79,"slugB":80,"labelB":81},"gpt-4o-vs-llama-4-scout","GPT-4o vs Llama 4 Scout","gpt-53-codex-vs-llama-4-scout","GPT-5.3-Codex vs Llama 4 Scout",{"slugA":83,"labelA":84,"slugB":85,"labelB":86},"claude-sonnet-46-vs-gpt-4o","GPT-4o vs Claude Sonnet 4.6","claude-sonnet-46-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Sonnet 4.6",{"slugA":88,"labelA":89,"slugB":90,"labelB":91},"claude-haiku-45-vs-gpt-4o","GPT-4o vs Claude Haiku 4.5","claude-haiku-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Haiku 4.5",{"slugA":93,"labelA":94,"slugB":95,"labelB":96},"glm-52-vs-gpt-4o","GPT-4o vs GLM-5.2","glm-52-vs-gpt-53-codex","GPT-5.3-Codex vs GLM-5.2",{"slugA":98,"labelA":99,"slugB":100,"labelB":101},"gpt-4o-vs-qwen-36","GPT-4o vs Qwen 3.6","gpt-53-codex-vs-qwen-36","GPT-5.3-Codex vs Qwen 3.6",{"slugA":103,"labelA":104,"slugB":105,"labelB":106},"deepseek-r1-vs-gpt-4o","GPT-4o vs DeepSeek R1","deepseek-r1-vs-gpt-53-codex","GPT-5.3-Codex vs DeepSeek R1",{"slugA":108,"labelA":109,"slugB":110,"labelB":111},"claude-opus-46-vs-gpt-4o","GPT-4o vs Claude Opus 4.6","claude-opus-46-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Opus 4.6"]