分析：V4.1 Flash 在 OpenCode 上体验差异源于服务端
作者认为量化不是主因，KV 缓存策略、路由与 serving 优化差异更大；速度从正常到 3 tok/s 不等，免费版激进压缩上下文也会拉低体感。
i’ve been looking more closely at why DeepSeek V4.1 Flash feels different on OpenCode. 5 things stood out: 1. i don’t think quantization explains everything. V4.1 Flash already ships in MXFP4/FP8 mixed precision, so there isn’t that much room left to keep squeezing it. 2. cache behavior looks like a much bigger deal. DeepSeek’s own infra reportedly keeps KV cache around much longer and shares it across more of the serving stack. 3. speed is all over the place. i’ve seen reports ranging from normal performance down to 3 tok/s, which makes provider quality matter a lot more than the model name. 4. the free version also seems to compact much more aggressively for some people, which can make the model feel worse even if the underlying weights are identical. 5. i care more about transparency now. if OpenCode is changing kernels, cache policy, routing or serving optimizations, i’d rather know that than assume “DeepSeek is just worse here.” my takeaway: the same model can feel completely different depending on how it’s served.