[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-claude-opus-5-vs-kimi-k3":3},{"modelA":4,"modelB":9,"categories":14,"faq":55,"winsA":65,"winsB":66,"relatedArticles":67,"otherComparisons":87},{"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},"Kimi K3","Moonshot AI","$0.60\u002F$2.50","A newly released 2.8T-parameter open-source frontier model positioned as a top-tier competitor to leading U.S. systems.",[15,19,25,31,36,41,44,47,50],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":23,"winner":24},"context","Context Window","200K","128K","a",{"key":26,"label":27,"valueA":28,"valueB":29,"winner":30},"pricingInput","Input Price ($\u002F1M)","$15","$0.6","b",{"key":32,"label":33,"valueA":34,"valueB":35,"winner":30},"pricingOutput","Output Price ($\u002F1M)","$75","$2.5",{"key":37,"label":38,"valueA":39,"valueB":40,"winner":30},"arena","Arena ELO","N\u002FA","1679",{"key":42,"label":43,"valueA":39,"valueB":39,"winner":18},"coding","Coding",{"key":45,"label":46,"valueA":39,"valueB":39,"winner":18},"reasoning","Reasoning",{"key":48,"label":49,"valueA":39,"valueB":39,"winner":18},"speed","Speed (tokens\u002Fsec)",{"key":51,"label":52,"valueA":53,"valueB":54,"winner":18},"openSource","Open Source","No","Yes",[56,59,62],{"question":57,"answer":58},"Which is cheaper, Claude Opus 5 or Kimi K3?","Kimi K3 is approximately 97% cheaper than Claude Opus 5 per million tokens.",{"question":60,"answer":61},"Which has a larger context window?","Claude Opus 5 supports 200K context, while Kimi K3 supports 128K.",{"question":63,"answer":64},"Is Claude Opus 5 or Kimi K3 open source?","Claude Opus 5 is proprietary. Kimi K3 is open source.",1,3,[68,72,75,78,81,84],{"slug":69,"title":70,"language":71},"kimi-k3-forces-silicon-valley-to-pick-sides-en","Kimi K3 Is Forcing Silicon Valley to Pick Sides","en",{"slug":73,"title":74,"language":71},"claude-voice-mode-more-work-in-chat-en","Claude voice mode now does more work in chat",{"slug":76,"title":77,"language":71},"claude-opus-5-undercuts-fable-5-price-en","Claude Opus 5 undercuts Fable 5 on price",{"slug":79,"title":80,"language":71},"kimi-k3-vs-glm-5-2-one-endpoint-test-en","Kimi K3 vs GLM-5.2: a one-endpoint test",{"slug":82,"title":83,"language":71},"kimi-k3-820k-rust-codebase-test-en","Kimi K3 handles an 820k-line Rust codebase",{"slug":85,"title":86,"language":71},"kimi-k3-benchmark-evaluation-guide-coding-agents-en","Kimi K3 Benchmark Evaluation Guide for Coding Agents",[88,93,98,103,108,113,118,123],{"slugA":89,"labelA":90,"slugB":91,"labelB":92},"claude-opus-45-vs-claude-opus-5","Claude Opus 5 vs Claude Opus 4.5","claude-opus-45-vs-kimi-k3","Kimi K3 vs Claude Opus 4.5",{"slugA":94,"labelA":95,"slugB":96,"labelB":97},"claude-opus-5-vs-llama-4-scout","Claude Opus 5 vs Llama 4 Scout","kimi-k3-vs-llama-4-scout","Kimi K3 vs Llama 4 Scout",{"slugA":99,"labelA":100,"slugB":101,"labelB":102},"claude-haiku-45-vs-claude-opus-5","Claude Opus 5 vs Claude Haiku 4.5","claude-haiku-45-vs-kimi-k3","Kimi K3 vs Claude Haiku 4.5",{"slugA":104,"labelA":105,"slugB":106,"labelB":107},"claude-opus-5-vs-qwen-36","Claude Opus 5 vs Qwen 3.6","kimi-k3-vs-qwen-36","Kimi K3 vs Qwen 3.6",{"slugA":109,"labelA":110,"slugB":111,"labelB":112},"claude-opus-5-vs-kimi-k27-code","Claude Opus 5 vs Kimi K2.7 Code","kimi-k27-code-vs-kimi-k3","Kimi K3 vs Kimi K2.7 Code",{"slugA":114,"labelA":115,"slugB":116,"labelB":117},"claude-opus-5-vs-llama-4-maverick","Claude Opus 5 vs Llama 4 Maverick","kimi-k3-vs-llama-4-maverick","Kimi K3 vs Llama 4 Maverick",{"slugA":119,"labelA":120,"slugB":121,"labelB":122},"claude-opus-5-vs-gpt-53-codex","Claude Opus 5 vs GPT-5.3-Codex","gpt-53-codex-vs-kimi-k3","Kimi K3 vs GPT-5.3-Codex",{"slugA":124,"labelA":125,"slugB":126,"labelB":127},"claude-opus-5-vs-gemma-4","Claude Opus 5 vs Gemma 4","gemma-4-vs-kimi-k3","Kimi K3 vs Gemma 4"]