DeepSeek kernel engineer's blog: why he stayed instead of joining Anthropic
TheTuringPost · x · 2026-09-17
Shengyu Liu (intlsy), the DeepSeek kernel engineer behind the main Attention operators of DeepSeek-V4.1-Flash and a key contributor to DeepEP V2, published a strikingly personal blog post.
- He candidly describes the struggle of watching his kernel-engineering craft become obsolete through his own work
- He argues AI development may push future societies toward two extremes: communism or a Cyberpunk 2077 scenario
- He says he especially doesn't want Anthropic to master AGI — comparing it, hyperbolically, to a catastrophic power acquiring nuclear weapons first — and that this is why he chose to stay at DeepSeek
The post has drawn wide attention as a rare first-person window into DeepSeek's engineers and their worldview.
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