DeepSeek 4.1 Flash 为何没让业界恐慌
一位开发者博主称自己高强度使用 DeepSeek 4.1 Flash 约一个月，主观感受上与 Claude Opus 5.5 等前沿模型难以区分，成本却低若干数量级，他甚至用 Opus 做最终代码审查、再让 DeepSeek 执行修改。文中还称 DeepSeek 把 KV 缓存较 V1 缩小约 437 倍，这是全天候编码会话费用低于 1 美元的原因，并附带提及关于中国实验室蒸馏 Claude 训练的指控，称开发者更在意性价比而非数据来源之争。
如果低成本模型在真实编码工作流中已经“足够好”，前沿实验室依赖高价订阅的定价能力可能面临压力。
- 07 October 2026
- tech
I have been using DeepSeek 4.1 Flash for about a month, heavily, across a dozen projects. It is super capable, and orders of magnitude cheaper than the "frontier" models. When I'm mid-session, if I don't look at the model name, I honestly could not tell you if I'm using DeepSeek or Opus. Whether it's our conversations, the work, or the speed, I don't notice a difference. I don't care that there is no 4.1 "Pro". I treat this like a frontier model because it behaves like one. I'm coming at this from my subjective usage experience, but you can see more complete benchmarks here if that floats your boat.
