[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-claude-opus-5-vs-gpt-4o":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},"Claude Opus 5","Anthropic","$15\u002F$75","Anthropic’s newest flagship model, positioned as near top-tier performance at roughly half the price of its predecessor.",{"name":10,"provider":11,"pricing":12,"highlights":13},"GPT-4o","OpenAI","$2.5\u002F$10","Legacy but still available; superseded by GPT-5 family",[15,19,25,31,36,41,45,49,53],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":23,"winner":24},"context","Context Window","200K","128K","a",{"key":26,"label":27,"valueA":28,"valueB":29,"winner":30},"pricingInput","Input Price ($\u002F1M)","$15","$2.5","b",{"key":32,"label":33,"valueA":34,"valueB":35,"winner":30},"pricingOutput","Output Price ($\u002F1M)","$75","$10",{"key":37,"label":38,"valueA":39,"valueB":40,"winner":30},"arena","Arena ELO","N\u002FA","1340",{"key":42,"label":43,"valueA":39,"valueB":44,"winner":18},"coding","Coding","30.8% SWE-bench",{"key":46,"label":47,"valueA":39,"valueB":48,"winner":18},"reasoning","Reasoning","unknown",{"key":50,"label":51,"valueA":39,"valueB":52,"winner":30},"speed","Speed (tokens\u002Fsec)","~100 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, Claude Opus 5 or GPT-4o?","GPT-4o is approximately 86% cheaper than Claude Opus 5 per million tokens.",{"question":62,"answer":63},"Which is better for coding, Claude Opus 5 or GPT-4o?","Claude Opus 5 scores N\u002FA on coding benchmarks, while GPT-4o scores 30.8% SWE-bench.",{"question":65,"answer":66},"Which has a larger context window?","Claude Opus 5 supports 200K context, while GPT-4o supports 128K.",{"question":68,"answer":69},"Is Claude Opus 5 or GPT-4o open source?","Claude Opus 5 is proprietary. GPT-4o is proprietary.",1,4,[73,77,80,83,86,89],{"slug":74,"title":75,"language":76},"claude-voice-mode-more-work-in-chat-en","Claude voice mode now does more work in chat","en",{"slug":78,"title":79,"language":76},"claude-opus-5-undercuts-fable-5-price-en","Claude Opus 5 undercuts Fable 5 on price",{"slug":81,"title":82,"language":76},"claude-code-terminal-workflow-template-en","Claude Code turns chat into terminal work",{"slug":84,"title":85,"language":76},"anthropic-extends-claude-fable-access-after-gpt56-en","Anthropic extends Claude Fable access after GPT-5.6",{"slug":87,"title":88,"language":76},"claude-j-space-is-not-consciousness-en","Claude's J-space is not consciousness, but it matters",{"slug":90,"title":91,"language":76},"claude-code-mcp-setup-real-tools-en","Claude Code MCP setup that connects real tools",[93,98,103,108,113,118,123,128],{"slugA":94,"labelA":95,"slugB":96,"labelB":97},"claude-opus-45-vs-claude-opus-5","Claude Opus 5 vs Claude Opus 4.5","claude-opus-45-vs-gpt-4o","GPT-4o vs Claude Opus 4.5",{"slugA":99,"labelA":100,"slugB":101,"labelB":102},"claude-opus-5-vs-llama-4-scout","Claude Opus 5 vs Llama 4 Scout","gpt-4o-vs-llama-4-scout","GPT-4o vs Llama 4 Scout",{"slugA":104,"labelA":105,"slugB":106,"labelB":107},"claude-haiku-45-vs-claude-opus-5","Claude Opus 5 vs Claude Haiku 4.5","claude-haiku-45-vs-gpt-4o","GPT-4o vs Claude Haiku 4.5",{"slugA":109,"labelA":110,"slugB":111,"labelB":112},"claude-opus-5-vs-qwen-36","Claude Opus 5 vs Qwen 3.6","gpt-4o-vs-qwen-36","GPT-4o vs Qwen 3.6",{"slugA":114,"labelA":115,"slugB":116,"labelB":117},"claude-opus-5-vs-kimi-k27-code","Claude Opus 5 vs Kimi K2.7 Code","gpt-4o-vs-kimi-k27-code","GPT-4o vs Kimi K2.7 Code",{"slugA":119,"labelA":120,"slugB":121,"labelB":122},"claude-opus-5-vs-llama-4-maverick","Claude Opus 5 vs Llama 4 Maverick","gpt-4o-vs-llama-4-maverick","GPT-4o vs Llama 4 Maverick",{"slugA":124,"labelA":125,"slugB":126,"labelB":127},"claude-opus-5-vs-gpt-53-codex","Claude Opus 5 vs GPT-5.3-Codex","gpt-4o-vs-gpt-53-codex","GPT-4o vs GPT-5.3-Codex",{"slugA":129,"labelA":130,"slugB":131,"labelB":132},"claude-opus-5-vs-gemma-4","Claude Opus 5 vs Gemma 4","gemma-4-vs-gpt-4o","GPT-4o vs Gemma 4"]