[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"compare-claude-opus-5-vs-deepseek-v4-flash":3},{"modelA":4,"modelB":9,"categories":14,"faq":54,"winsA":64,"winsB":65,"relatedArticles":66,"otherComparisons":86},{"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},"DeepSeek V4 Flash","DeepSeek","$0.14\u002F$0.28","Low-cost DeepSeek variant cited in 2026 token-cost comparisons as a budget option for fast inference.",[15,19,25,31,36,40,43,46,49],{"key":16,"label":17,"valueA":6,"valueB":11,"winner":18},"provider","Provider","tie",{"key":20,"label":21,"valueA":22,"valueB":23,"winner":24},"context","Context Window","200K","128K","a",{"key":26,"label":27,"valueA":28,"valueB":29,"winner":30},"pricingInput","Input Price ($\u002F1M)","$15","$0.14","b",{"key":32,"label":33,"valueA":34,"valueB":35,"winner":30},"pricingOutput","Output Price ($\u002F1M)","$75","$0.28",{"key":37,"label":38,"valueA":39,"valueB":39,"winner":18},"arena","Arena ELO","N\u002FA",{"key":41,"label":42,"valueA":39,"valueB":39,"winner":18},"coding","Coding",{"key":44,"label":45,"valueA":39,"valueB":39,"winner":18},"reasoning","Reasoning",{"key":47,"label":48,"valueA":39,"valueB":39,"winner":18},"speed","Speed (tokens\u002Fsec)",{"key":50,"label":51,"valueA":52,"valueB":53,"winner":18},"openSource","Open Source","No","Yes",[55,58,61],{"question":56,"answer":57},"Which is cheaper, Claude Opus 5 or DeepSeek V4 Flash?","DeepSeek V4 Flash is approximately 100% cheaper than Claude Opus 5 per million tokens.",{"question":59,"answer":60},"Which has a larger context window?","Claude Opus 5 supports 200K context, while DeepSeek V4 Flash supports 128K.",{"question":62,"answer":63},"Is Claude Opus 5 or DeepSeek V4 Flash open source?","Claude Opus 5 is proprietary. DeepSeek V4 Flash is open source.",1,2,[67,71,74,77,80,83],{"slug":68,"title":69,"language":70},"claude-voice-mode-more-work-in-chat-en","Claude voice mode now does more work in chat","en",{"slug":72,"title":73,"language":70},"claude-opus-5-undercuts-fable-5-price-en","Claude Opus 5 undercuts Fable 5 on price",{"slug":75,"title":76,"language":70},"claude-code-terminal-workflow-template-en","Claude Code turns chat into terminal work",{"slug":78,"title":79,"language":70},"anthropic-extends-claude-fable-access-after-gpt56-en","Anthropic extends Claude Fable access after GPT-5.6",{"slug":81,"title":82,"language":70},"claude-j-space-is-not-consciousness-en","Claude's J-space is not consciousness, but it matters",{"slug":84,"title":85,"language":70},"claude-code-mcp-setup-real-tools-en","Claude Code MCP setup that connects real tools",[87,92,97,102,107,112,117,122],{"slugA":88,"labelA":89,"slugB":90,"labelB":91},"claude-opus-45-vs-claude-opus-5","Claude Opus 5 vs Claude Opus 4.5","claude-opus-45-vs-deepseek-v4-flash","DeepSeek V4 Flash vs Claude Opus 4.5",{"slugA":93,"labelA":94,"slugB":95,"labelB":96},"claude-opus-5-vs-llama-4-scout","Claude Opus 5 vs Llama 4 Scout","deepseek-v4-flash-vs-llama-4-scout","DeepSeek V4 Flash vs Llama 4 Scout",{"slugA":98,"labelA":99,"slugB":100,"labelB":101},"claude-haiku-45-vs-claude-opus-5","Claude Opus 5 vs Claude Haiku 4.5","claude-haiku-45-vs-deepseek-v4-flash","DeepSeek V4 Flash vs Claude Haiku 4.5",{"slugA":103,"labelA":104,"slugB":105,"labelB":106},"claude-opus-5-vs-qwen-36","Claude Opus 5 vs Qwen 3.6","deepseek-v4-flash-vs-qwen-36","DeepSeek V4 Flash vs Qwen 3.6",{"slugA":108,"labelA":109,"slugB":110,"labelB":111},"claude-opus-5-vs-kimi-k27-code","Claude Opus 5 vs Kimi K2.7 Code","deepseek-v4-flash-vs-kimi-k27-code","DeepSeek V4 Flash vs Kimi K2.7 Code",{"slugA":113,"labelA":114,"slugB":115,"labelB":116},"claude-opus-5-vs-llama-4-maverick","Claude Opus 5 vs Llama 4 Maverick","deepseek-v4-flash-vs-llama-4-maverick","DeepSeek V4 Flash vs Llama 4 Maverick",{"slugA":118,"labelA":119,"slugB":120,"labelB":121},"claude-opus-5-vs-gpt-53-codex","Claude Opus 5 vs GPT-5.3-Codex","deepseek-v4-flash-vs-gpt-53-codex","DeepSeek V4 Flash vs GPT-5.3-Codex",{"slugA":123,"labelA":124,"slugB":125,"labelB":126},"claude-opus-5-vs-gemma-4","Claude Opus 5 vs Gemma 4","deepseek-v4-flash-vs-gemma-4","DeepSeek V4 Flash vs Gemma 4"]