Siyuan XueStudent in Intelligence Science and Technology at BUPT, working on AI systems and full-stack engineering.https://siyuanxue.com/enCongrats, You Hit the LimitWhy the same AI usage feels like value to consumers, cost to developers, and growth to businesses.https://siyuanxue.com/post/congrats-you-hit-the-limit/https://siyuanxue.com/post/congrats-you-hit-the-limit/Sun, 19 Jul 2026 00:00:00 GMTWhy this siteWhy this personal site exists — clear writing, a short list of work, and room to grow.https://siyuanxue.com/essay/why-this-site/https://siyuanxue.com/essay/why-this-site/Tue, 14 Jul 2026 00:00:00 GMTA short note on launchShipping notes for v1 — structure first, content fills in.https://siyuanxue.com/post/first-note/https://siyuanxue.com/post/first-note/Tue, 14 Jul 2026 00:00:00 GMT