End-to-end case studies of how AI businesses actually make money. One case per week, sorted by the play, not the dollar number. Each teardown pulls one case apart and ends with 3 lessons you can copy this week.
One solo builder. 7 AI agents. 47 customers × $400. $480 in API costs. The "system, not tool" insight behind AI's most underpriced category. Hard rules: orders over $3K trigger human; reply rate under 12% pauses the day's sends.
Read teardown →A laid-off 35-year-old content operator uses 5 AI agents to run 47 accounts across Toutiao, Baijia, WeChat, Xiaohongshu. 50 articles/day. The 3-per-track cap that prevents mass-bans. Why AI doesn't make you money — it makes "one-person business" possible.
Read teardown →5-product micro-SaaS portfolio. $1M/year with no employees. 7-day ship cycle. Bought-once pricing at $99-299 — the opposite of every SaaS playbook. Full markdown source below; HTML render coming next week.
Markdown source · 001-marc-lou-portfolio.md