[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-gpt-53-codex-vs-gpt-55":3},{"modelA":4,"modelB":9,"categories":13,"faq":48,"winsA":55,"winsB":56,"relatedArticles":57,"otherComparisons":74},{"name":5,"provider":6,"pricing":7,"highlights":8},"GPT-5.3-Codex","OpenAI","$1.75\u002F$14","Coding-oriented OpenAI model referenced in June 2026 pricing coverage with strong developer-task performance.",{"name":10,"provider":6,"pricing":11,"highlights":12},"GPT-5.5",null,"OpenAI's latest model, GPT-5.5, offers advanced capabilities for coding and complex tasks.",[14,18,22,28,32,35,38,41,44],{"key":15,"label":16,"valueA":6,"valueB":6,"winner":17},"provider","Provider","tie",{"key":19,"label":20,"valueA":21,"valueB":21,"winner":17},"context","Context Window","128K",{"key":23,"label":24,"valueA":25,"valueB":26,"winner":27},"pricingInput","Input Price ($\u002F1M)","$1.75","N\u002FA","a",{"key":29,"label":30,"valueA":31,"valueB":26,"winner":27},"pricingOutput","Output Price ($\u002F1M)","$14",{"key":33,"label":34,"valueA":26,"valueB":26,"winner":17},"arena","Arena ELO",{"key":36,"label":37,"valueA":26,"valueB":26,"winner":17},"coding","Coding",{"key":39,"label":40,"valueA":26,"valueB":26,"winner":17},"reasoning","Reasoning",{"key":42,"label":43,"valueA":26,"valueB":26,"winner":17},"speed","Speed (tokens\u002Fsec)",{"key":45,"label":46,"valueA":47,"valueB":47,"winner":17},"openSource","Open Source","No",[49,52],{"question":50,"answer":51},"Which has a larger context window?","GPT-5.3-Codex supports 128K context, while GPT-5.5 supports 128K.",{"question":53,"answer":54},"Is GPT-5.3-Codex or GPT-5.5 open source?","GPT-5.3-Codex is proprietary. GPT-5.5 is proprietary.",2,0,[58,62,65,68,71],{"slug":59,"title":60,"language":61},"ai-model-benchmarks-gpt-55-claude-gemini-grok-en","18 AI benchmarks now rank GPT-5.5, Claude, Gemini","en",{"slug":63,"title":64,"language":61},"gpt-5-5-senior-engineer-benchmark-every-en","GPT-5.5 scores 62.5 on Every’s engineer test",{"slug":66,"title":67,"language":61},"gpt-55-tops-artificial-analysis-score-60-en","GPT-5.5 tops Artificial Analysis with score of 60",{"slug":69,"title":70,"language":61},"why-gpt-5-5-should-be-default-coding-llm-2026-en","Why GPT-5.5 Should Be Your Default Coding LLM in 2026",{"slug":72,"title":73,"language":61},"why-gpt-55-is-not-the-victory-lap-openai-wants-you-to-believ-en","Why GPT-5.5 Is Not the Victory Lap OpenAI Wants You to Believe",[75,80,85,90,95,100,105,110],{"slugA":76,"labelA":77,"slugB":78,"labelB":79},"claude-opus-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Opus 4.5","claude-opus-45-vs-gpt-55","GPT-5.5 vs Claude Opus 4.5",{"slugA":81,"labelA":82,"slugB":83,"labelB":84},"gpt-53-codex-vs-llama-4-scout","GPT-5.3-Codex vs Llama 4 Scout","gpt-55-vs-llama-4-scout","GPT-5.5 vs Llama 4 Scout",{"slugA":86,"labelA":87,"slugB":88,"labelB":89},"claude-sonnet-46-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Sonnet 4.6","claude-sonnet-46-vs-gpt-55","GPT-5.5 vs Claude Sonnet 4.6",{"slugA":91,"labelA":92,"slugB":93,"labelB":94},"claude-haiku-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Haiku 4.5","claude-haiku-45-vs-gpt-55","GPT-5.5 vs Claude Haiku 4.5",{"slugA":96,"labelA":97,"slugB":98,"labelB":99},"glm-52-vs-gpt-53-codex","GPT-5.3-Codex vs GLM-5.2","glm-52-vs-gpt-55","GPT-5.5 vs GLM-5.2",{"slugA":101,"labelA":102,"slugB":103,"labelB":104},"gpt-53-codex-vs-qwen-36","GPT-5.3-Codex vs Qwen 3.6","gpt-55-vs-qwen-36","GPT-5.5 vs Qwen 3.6",{"slugA":106,"labelA":107,"slugB":108,"labelB":109},"gpt-4o-vs-gpt-53-codex","GPT-5.3-Codex vs GPT-4o","gpt-4o-vs-gpt-55","GPT-5.5 vs GPT-4o",{"slugA":111,"labelA":112,"slugB":113,"labelB":114},"deepseek-r1-vs-gpt-53-codex","GPT-5.3-Codex vs DeepSeek R1","deepseek-r1-vs-gpt-55","GPT-5.5 vs DeepSeek R1"]