OAIHands-on reviewed
OpenAI
OpenAI Academy + Cookbook
For: Engineers on the OpenAI stack
Beginner · Variable (modular) · Free
OAI
OpenAI courses & learning resources (2026)
OpenAI's free education runs in two tracks: Academy (non-developers) and Cookbook (engineers). The Cookbook is one of the best free AI engineering resources in 2026.
OpenAI's developer-facing Cookbook (cookbook.openai.com) is one of the most-cited free resources in AI engineering. Production patterns for chat completions, function calling, structured outputs, embeddings, RAG, fine-tuning — all hands-on, all updated continuously, all OpenAI-stack-specific.
The Academy (academy.openai.com) is the non-developer counterpart. Modules on ChatGPT mastery, AI for business, AI literacy. Free, well-structured, but more marketing-flavored than the Cookbook. Take the modules selectively rather than committing to a full track.
What's missing: deep LLM internals, fine-tuning math, classical ML. OpenAI deliberately stays in the application layer. For internals, pair OpenAI's portfolio with Hugging Face's LLM Course or Karpathy's Zero to Hero.
Editor-reviewed courses (1)
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