Digest Archive

This week we're going deep on the AI engineering side: prompt engineering patterns that ship reliable features, the fine-tuning decision framework, and how to cut LLM costs by 80% without sacrificing quality.

This week's focus: retention and personalization. We dive into churn prediction models that actually prevent cancellations, AI personalization at scale, and the latest thinking on A/B testing with ML.

Welcome to the first AI Growth Stack Weekly. This week we're covering the foundations: RAG pipelines that actually work, how growth loops compound with AI, and the embedding models worth your attention in 2026.