Free Generative AI Courses

Generative AI courses here split into two starting points: working with the models that already exist, and understanding what sits underneath them. If you write Python already and just want to call a model's API, DeepLearning.AI's short courses are the fastest way in. Start with ChatGPT Prompt Engineering for Developers, then work through LangChain, RAG, and multi-agent systems with crewAI. Anthropic's Prompt Engineering Interactive Tutorial covers the same ground across nine hands-on chapters, and its MCP quickstart is the natural next step once you want a model talking to your own tools. Hugging Face goes deeper into open-source models: the LLM Course runs 30 hours on tokenization and fine-tuning, and the 20-hour AI Agents Course chains them into agents that actually run. For the theory beneath all of it, CS50's Introduction to AI with Python and fast.ai's Practical Deep Learning for Coders are the two real commitments here, at 30 and 60 hours. Never touched a model before? Google's Introduction to Generative AI and Introduction to Large Language Models are an hour each and both hand you a certificate. One honest catch: the seven DeepLearning.AI courses run one to three hours and none of them awards a certificate, so they teach you an API rather than a field. Use them for a fast start, then pair them with one of the longer courses.