[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-gpt-53-codex-vs-longcat-20":3},{"modelA":4,"modelB":9,"categories":14,"faq":50,"winsA":57,"winsB":58,"relatedArticles":59,"otherComparisons":60},{"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},"LongCat-2.0","Meituan","$0\u002F$0","Open-sourced in recent news as a new large model release, but reliable public API pricing was not available.",[15,19,23,29,33,36,39,42,45],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":22,"winner":18},"context","Context Window","128K",{"key":24,"label":25,"valueA":26,"valueB":27,"winner":28},"pricingInput","Input Price ($\u002F1M)","$1.75","N\u002FA","a",{"key":30,"label":31,"valueA":32,"valueB":27,"winner":28},"pricingOutput","Output Price ($\u002F1M)","$14",{"key":34,"label":35,"valueA":27,"valueB":27,"winner":18},"arena","Arena ELO",{"key":37,"label":38,"valueA":27,"valueB":27,"winner":18},"coding","Coding",{"key":40,"label":41,"valueA":27,"valueB":27,"winner":18},"reasoning","Reasoning",{"key":43,"label":44,"valueA":27,"valueB":27,"winner":18},"speed","Speed (tokens\u002Fsec)",{"key":46,"label":47,"valueA":48,"valueB":49,"winner":18},"openSource","Open Source","No","Yes",[51,54],{"question":52,"answer":53},"Which has a larger context window?","GPT-5.3-Codex supports 128K context, while LongCat-2.0 supports 128K.",{"question":55,"answer":56},"Is GPT-5.3-Codex or LongCat-2.0 open source?","GPT-5.3-Codex is proprietary. LongCat-2.0 is open source.",2,0,[],[61,66,71,76,81,86,91,96],{"slugA":62,"labelA":63,"slugB":64,"labelB":65},"claude-opus-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Opus 4.5","claude-opus-45-vs-longcat-20","LongCat-2.0 vs Claude Opus 4.5",{"slugA":67,"labelA":68,"slugB":69,"labelB":70},"gpt-53-codex-vs-llama-4-scout","GPT-5.3-Codex vs Llama 4 Scout","llama-4-scout-vs-longcat-20","LongCat-2.0 vs Llama 4 Scout",{"slugA":72,"labelA":73,"slugB":74,"labelB":75},"claude-sonnet-46-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Sonnet 4.6","claude-sonnet-46-vs-longcat-20","LongCat-2.0 vs Claude Sonnet 4.6",{"slugA":77,"labelA":78,"slugB":79,"labelB":80},"claude-haiku-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Haiku 4.5","claude-haiku-45-vs-longcat-20","LongCat-2.0 vs Claude Haiku 4.5",{"slugA":82,"labelA":83,"slugB":84,"labelB":85},"gpt-53-codex-vs-qwen-36","GPT-5.3-Codex vs Qwen 3.6","longcat-20-vs-qwen-36","LongCat-2.0 vs Qwen 3.6",{"slugA":87,"labelA":88,"slugB":89,"labelB":90},"claude-fable-5-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Fable 5","claude-fable-5-vs-longcat-20","LongCat-2.0 vs Claude Fable 5",{"slugA":92,"labelA":93,"slugB":94,"labelB":95},"gpt-53-codex-vs-kimi-k27-code","GPT-5.3-Codex vs Kimi K2.7 Code","kimi-k27-code-vs-longcat-20","LongCat-2.0 vs Kimi K2.7 Code",{"slugA":97,"labelA":98,"slugB":99,"labelB":100},"deepseek-v4-flash-vs-gpt-53-codex","GPT-5.3-Codex vs DeepSeek V4 Flash","deepseek-v4-flash-vs-longcat-20","LongCat-2.0 vs DeepSeek V4 Flash"]