DeepSeek 发布节奏梳理：单次编程任务成本约为 Opus 5.5 的 1/25
作者列出 DeepSeek 从 Coder 到 V4.1-Flash-1017 的发布时间线，称独立测试中 Flash 在部分一次性编程任务上追平 Opus 5.5 而成本约 1/25，长会话仍落后。
The lifespan of DeepSeek models is getting more interesting. DeepSeek Coder: Nov 2023 DeepSeek-V2: May 2024 DeepSeek-V2.5: Sep 2024 DeepSeek-V3: Dec 2024 DeepSeek-R1: Jan 2025 DeepSeek-V3-0324: Mar 2025 DeepSeek-R1-0528: May 2025 DeepSeek-V3.1: Aug 2025 DeepSeek-V3.2: Dec 2025 DeepSeek-V4: Apr 2026 DeepSeek-V4.1-Flash: Sep 2026 DeepSeek-V4.1-Flash-1017: Oct 2026 The release cycle is accelerating. But the more interesting part is the cost. DeepSeek's latest Flash model reportedly matched Claude Opus 5.5 on selected one-shot coding tasks in an independent test, at roughly 1/25th of the cost. On longer, more complex coding sessions, Opus still leads. And that's exactly what makes this interesting. DeepSeek doesn't need to beat Claude at everything. It just needs to get good enough that developers stop paying frontier-model prices for every task. And V5 hasn't even been announced yet. The real question is how much closer DeepSeek can get with its next generation.