[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-deepseek-v4-flash-0731-vs-gpt-53-codex":3},{"modelA":4,"modelB":9,"categories":14,"faq":51,"winsA":58,"winsB":59,"relatedArticles":60,"otherComparisons":61},{"name":5,"provider":6,"pricing":7,"highlights":8},"DeepSeek-V4-Flash-0731","DeepSeek","$0.00\u002F$0.00","An MIT-licensed MoE model with major agentic and coding gains, outperforming DeepSeek V4-Pro (Preview) on several benchmarks.",{"name":10,"provider":11,"pricing":12,"highlights":13},"GPT-5.3-Codex","OpenAI","$1.75\u002F$14","Coding-oriented OpenAI model referenced in June 2026 pricing coverage with strong developer-task performance.",[15,19,25,30,34,37,40,43,46],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":23,"winner":24},"context","Context Window","uncertain","128K","b",{"key":26,"label":27,"valueA":28,"valueB":29,"winner":24},"pricingInput","Input Price ($\u002F1M)","N\u002FA","$1.75",{"key":31,"label":32,"valueA":28,"valueB":33,"winner":24},"pricingOutput","Output Price ($\u002F1M)","$14",{"key":35,"label":36,"valueA":28,"valueB":28,"winner":18},"arena","Arena ELO",{"key":38,"label":39,"valueA":28,"valueB":28,"winner":18},"coding","Coding",{"key":41,"label":42,"valueA":28,"valueB":28,"winner":18},"reasoning","Reasoning",{"key":44,"label":45,"valueA":28,"valueB":28,"winner":18},"speed","Speed (tokens\u002Fsec)",{"key":47,"label":48,"valueA":49,"valueB":50,"winner":18},"openSource","Open Source","Yes","No",[52,55],{"question":53,"answer":54},"Which has a larger context window?","DeepSeek-V4-Flash-0731 supports uncertain context, while GPT-5.3-Codex supports 128K.",{"question":56,"answer":57},"Is DeepSeek-V4-Flash-0731 or GPT-5.3-Codex open source?","DeepSeek-V4-Flash-0731 is open source. GPT-5.3-Codex is proprietary.",0,3,[],[62,67,72,77,82,87,92,97],{"slugA":63,"labelA":64,"slugB":65,"labelB":66},"claude-opus-45-vs-deepseek-v4-flash-0731","DeepSeek-V4-Flash-0731 vs Claude Opus 4.5","claude-opus-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Opus 4.5",{"slugA":68,"labelA":69,"slugB":70,"labelB":71},"deepseek-v4-flash-0731-vs-llama-4-scout","DeepSeek-V4-Flash-0731 vs Llama 4 Scout","gpt-53-codex-vs-llama-4-scout","GPT-5.3-Codex vs Llama 4 Scout",{"slugA":73,"labelA":74,"slugB":75,"labelB":76},"claude-haiku-45-vs-deepseek-v4-flash-0731","DeepSeek-V4-Flash-0731 vs Claude Haiku 4.5","claude-haiku-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Haiku 4.5",{"slugA":78,"labelA":79,"slugB":80,"labelB":81},"deepseek-v4-flash-0731-vs-qwen-36","DeepSeek-V4-Flash-0731 vs Qwen 3.6","gpt-53-codex-vs-qwen-36","GPT-5.3-Codex vs Qwen 3.6",{"slugA":83,"labelA":84,"slugB":85,"labelB":86},"deepseek-v4-flash-0731-vs-kimi-k27-code","DeepSeek-V4-Flash-0731 vs Kimi K2.7 Code","gpt-53-codex-vs-kimi-k27-code","GPT-5.3-Codex vs Kimi K2.7 Code",{"slugA":88,"labelA":89,"slugB":90,"labelB":91},"deepseek-v4-flash-0731-vs-minimax-h3","DeepSeek-V4-Flash-0731 vs MiniMax H3","gpt-53-codex-vs-minimax-h3","GPT-5.3-Codex vs MiniMax H3",{"slugA":93,"labelA":94,"slugB":95,"labelB":96},"deepseek-v4-flash-0731-vs-llama-4-maverick","DeepSeek-V4-Flash-0731 vs Llama 4 Maverick","gpt-53-codex-vs-llama-4-maverick","GPT-5.3-Codex vs Llama 4 Maverick",{"slugA":98,"labelA":99,"slugB":100,"labelB":101},"deepseek-v4-flash-0731-vs-gemma-4","DeepSeek-V4-Flash-0731 vs Gemma 4","gemma-4-vs-gpt-53-codex","GPT-5.3-Codex vs Gemma 4"]