AI Engineer Notebooks – free, framework-free RAG/agents/evals on Colab

AI Engineer Notebooks is a free, framework-agnostic collection of runnable Colab notebooks designed to teach applied LLM development from first principles—covering model APIs, RAG, evaluations, agents, and serving using raw API calls rather than frameworks. The course emphasizes building working systems with real constraints, prioritizes evaluation metrics throughout the learning process, and runs entirely on free APIs (Groq and OpenAI-compatible services), making it accessible for backend engineers transitioning into AI engineering roles.