[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-gpt-53-codex-vs-grok-3":3},{"modelA":4,"modelB":9,"categories":14,"faq":57,"winsA":70,"winsB":71,"relatedArticles":72,"otherComparisons":92},{"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},"Grok 3","xAI","$3\u002F$15","Strong math\u002Fscience; now legacy (Grok 4 series launched)",[15,19,25,31,36,41,45,49,53],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":23,"winner":24},"context","Context Window","128K","131K","b",{"key":26,"label":27,"valueA":28,"valueB":29,"winner":30},"pricingInput","Input Price ($\u002F1M)","$1.75","$3","a",{"key":32,"label":33,"valueA":34,"valueB":35,"winner":30},"pricingOutput","Output Price ($\u002F1M)","$14","$15",{"key":37,"label":38,"valueA":39,"valueB":40,"winner":24},"arena","Arena ELO","N\u002FA","1391",{"key":42,"label":43,"valueA":39,"valueB":44,"winner":18},"coding","Coding","unknown",{"key":46,"label":47,"valueA":39,"valueB":48,"winner":18},"reasoning","Reasoning","93.3% AIME 2025",{"key":50,"label":51,"valueA":39,"valueB":52,"winner":24},"speed","Speed (tokens\u002Fsec)","~55 t\u002Fs",{"key":54,"label":55,"valueA":56,"valueB":56,"winner":18},"openSource","Open Source","No",[58,61,64,67],{"question":59,"answer":60},"Which is cheaper, GPT-5.3-Codex or Grok 3?","GPT-5.3-Codex is approximately 13% cheaper than Grok 3 per million tokens.",{"question":62,"answer":63},"Which is better for coding, GPT-5.3-Codex or Grok 3?","GPT-5.3-Codex scores N\u002FA on coding benchmarks, while Grok 3 scores unknown.",{"question":65,"answer":66},"Which has a larger context window?","GPT-5.3-Codex supports 128K context, while Grok 3 supports 131K.",{"question":68,"answer":69},"Is GPT-5.3-Codex or Grok 3 open source?","GPT-5.3-Codex is proprietary. Grok 3 is proprietary.",2,3,[73,77,80,83,86,89],{"slug":74,"title":75,"language":76},"pentagon-should-not-use-grok-wartime-targeting-en","The Pentagon should not use Grok for wartime targeting","en",{"slug":78,"title":79,"language":76},"grok-latest-controversies-regulation-story-en","Grok’s latest controversies are now a regulation story",{"slug":81,"title":82,"language":76},"spacex-ipo-should-not-wash-away-grok-safety-failures-en","SpaceX’s IPO Should Not Wash Away Grok’s Safety Failures",{"slug":84,"title":85,"language":76},"grok-updates-change-how-i-code-en","5 Grok updates that change how I code",{"slug":87,"title":88,"language":76},"advanced-grok-prompt-guide-2026-grok-420-en","Advanced Grok Prompt Guide 2026 for Grok 4.20",{"slug":90,"title":91,"language":76},"why-grok-build-is-not-ready-to-replace-claude-code-en","Why Grok Build is not ready to replace Claude Code",[93,98,103,108,113,118,123,128],{"slugA":94,"labelA":95,"slugB":96,"labelB":97},"claude-opus-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Opus 4.5","claude-opus-45-vs-grok-3","Grok 3 vs Claude Opus 4.5",{"slugA":99,"labelA":100,"slugB":101,"labelB":102},"gpt-53-codex-vs-llama-4-scout","GPT-5.3-Codex vs Llama 4 Scout","grok-3-vs-llama-4-scout","Grok 3 vs Llama 4 Scout",{"slugA":104,"labelA":105,"slugB":106,"labelB":107},"claude-sonnet-46-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Sonnet 4.6","claude-sonnet-46-vs-grok-3","Grok 3 vs Claude Sonnet 4.6",{"slugA":109,"labelA":110,"slugB":111,"labelB":112},"claude-haiku-45-vs-gpt-53-codex","GPT-5.3-Codex vs Claude Haiku 4.5","claude-haiku-45-vs-grok-3","Grok 3 vs Claude Haiku 4.5",{"slugA":114,"labelA":115,"slugB":116,"labelB":117},"glm-52-vs-gpt-53-codex","GPT-5.3-Codex vs GLM-5.2","glm-52-vs-grok-3","Grok 3 vs GLM-5.2",{"slugA":119,"labelA":120,"slugB":121,"labelB":122},"gpt-53-codex-vs-qwen-36","GPT-5.3-Codex vs Qwen 3.6","grok-3-vs-qwen-36","Grok 3 vs Qwen 3.6",{"slugA":124,"labelA":125,"slugB":126,"labelB":127},"gpt-4o-vs-gpt-53-codex","GPT-5.3-Codex vs GPT-4o","gpt-4o-vs-grok-3","Grok 3 vs GPT-4o",{"slugA":129,"labelA":130,"slugB":131,"labelB":132},"deepseek-r1-vs-gpt-53-codex","GPT-5.3-Codex vs DeepSeek R1","deepseek-r1-vs-grok-3","Grok 3 vs DeepSeek R1"]