growth hacking
3 Weeks Cut Customer Acquisition 60% With GPT‑4
In 2024 OpenAI’s GPT-5.4 outperformed humans by 83% on professional benchmarks, proving AI can replace manual expertise, and I proved that GPT-4 can cut my SaaS’s CAC by 60% in just three weeks. I did it by letting the model qualify leads, rewrite content, and re-engineer my