🗞️ AI Digest [20 oct 2025]

🚀 OpenAI Cofounder Builds New Open Source LLM 'Nanochat' - and Doesn't Use Vibe Coding 🔸 I Built an AI Prompt That Actually Writes YouTube Scripts Worth Watching 🔸 OpenAI Codex CLI: Early, Buggy, but Aiming to Redefine How Developers Code With AI 🔸 The teacher is the new engineer: Inside the rise of AI enablement and PromptOps 🔸 OpenAI’s ‘embarrassing’ math 🔸 From Zero to AI-Ready: How I Taught Myself Machine Learning (And What I would Tell You Now) 🔸 The Hidden Limits of Single Vector Embeddings in Retrieval