[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-claude-opus-45-vs-o3":3},{"modelA":4,"modelB":9,"categories":14,"faq":56,"winsA":72,"winsB":73,"relatedArticles":74,"otherComparisons":94},{"name":5,"provider":6,"pricing":7,"highlights":8},"Claude Opus 4.5","Anthropic","$5\u002F$25","Major price cut from Opus 4; strong agentic coding",{"name":10,"provider":11,"pricing":12,"highlights":13},"o3","OpenAI","$10\u002F$40","Strongest OpenAI reasoning model",[15,19,23,29,34,39,44,47,52],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":22,"winner":18},"context","Context Window","200K",{"key":24,"label":25,"valueA":26,"valueB":27,"winner":28},"pricingInput","Input Price ($\u002F1M)","$5","$10","a",{"key":30,"label":31,"valueA":32,"valueB":33,"winner":28},"pricingOutput","Output Price ($\u002F1M)","$25","$40",{"key":35,"label":36,"valueA":37,"valueB":38,"winner":28},"arena","Arena ELO","1380","1350",{"key":40,"label":41,"valueA":42,"valueB":43,"winner":18},"coding","Coding","80.9% SWE-bench","unknown",{"key":45,"label":46,"valueA":43,"valueB":43,"winner":18},"reasoning","Reasoning",{"key":48,"label":49,"valueA":50,"valueB":51,"winner":28},"speed","Speed (tokens\u002Fsec)","~35 t\u002Fs","~30 t\u002Fs",{"key":53,"label":54,"valueA":55,"valueB":55,"winner":18},"openSource","Open Source","No",[57,60,63,66,69],{"question":58,"answer":59},"Which is cheaper, Claude Opus 4.5 or o3?","Claude Opus 4.5 is approximately 40% cheaper than o3 per million tokens.",{"question":61,"answer":62},"Which is better for coding, Claude Opus 4.5 or o3?","Claude Opus 4.5 scores 80.9% SWE-bench on coding benchmarks, while o3 scores unknown.",{"question":64,"answer":65},"Which has a larger context window?","Claude Opus 4.5 supports 200K context, while o3 supports 200K.",{"question":67,"answer":68},"Is Claude Opus 4.5 or o3 open source?","Claude Opus 4.5 is proprietary. o3 is proprietary.",{"question":70,"answer":71},"Which ranks higher on the Chatbot Arena leaderboard?","Claude Opus 4.5 ranks higher with ELO 1380 vs 1350.",4,0,[75,79,82,85,88,91],{"slug":76,"title":77,"language":78},"anthropic-extends-claude-fable-access-after-gpt56-en","Anthropic extends Claude Fable access after GPT-5.6","en",{"slug":80,"title":81,"language":78},"claude-j-space-is-not-consciousness-en","Claude's J-space is not consciousness, but it matters",{"slug":83,"title":84,"language":78},"claude-code-mcp-setup-real-tools-en","Claude Code MCP setup that connects real tools",{"slug":86,"title":87,"language":78},"claude-reflect-turns-usage-into-retention-en","Claude Reflect turns usage into retention",{"slug":89,"title":90,"language":78},"claude-code-backdoor-scare-real-risks-en","Claude Code’s backdoor scare points to 4 real risks",{"slug":92,"title":93,"language":78},"anthropic-claude-skills-agent-toolkit-en","Anthropic’s Claude Skills define the new agent toolkit",[95,100,105,110,115,120,125,130],{"slugA":96,"labelA":97,"slugB":98,"labelB":99},"claude-opus-45-vs-llama-4-scout","Claude Opus 4.5 vs Llama 4 Scout","llama-4-scout-vs-o3","o3 vs Llama 4 Scout",{"slugA":101,"labelA":102,"slugB":103,"labelB":104},"claude-opus-45-vs-claude-sonnet-46","Claude Opus 4.5 vs Claude Sonnet 4.6","claude-sonnet-46-vs-o3","o3 vs Claude Sonnet 4.6",{"slugA":106,"labelA":107,"slugB":108,"labelB":109},"claude-haiku-45-vs-claude-opus-45","Claude Opus 4.5 vs Claude Haiku 4.5","claude-haiku-45-vs-o3","o3 vs Claude Haiku 4.5",{"slugA":111,"labelA":112,"slugB":113,"labelB":114},"claude-opus-45-vs-qwen-36","Claude Opus 4.5 vs Qwen 3.6","o3-vs-qwen-36","o3 vs Qwen 3.6",{"slugA":116,"labelA":117,"slugB":118,"labelB":119},"claude-fable-5-vs-claude-opus-45","Claude Opus 4.5 vs Claude Fable 5","claude-fable-5-vs-o3","o3 vs Claude Fable 5",{"slugA":121,"labelA":122,"slugB":123,"labelB":124},"claude-opus-45-vs-kimi-k27-code","Claude Opus 4.5 vs Kimi K2.7 Code","kimi-k27-code-vs-o3","o3 vs Kimi K2.7 Code",{"slugA":126,"labelA":127,"slugB":128,"labelB":129},"claude-opus-45-vs-deepseek-v4-flash","Claude Opus 4.5 vs DeepSeek V4 Flash","deepseek-v4-flash-vs-o3","o3 vs DeepSeek V4 Flash",{"slugA":131,"labelA":132,"slugB":133,"labelB":134},"claude-opus-45-vs-gpt-56-luna","Claude Opus 4.5 vs GPT-5.6 Luna","gpt-56-luna-vs-o3","o3 vs GPT-5.6 Luna"]