OpenAI just released GPT-5.2, and they’re calling it the smartest model in the world. So here’s what actually changed. GPT-5.2 is built for real professional use. It can handle complex knowledge work tasks like presentations, spreadsheets, and structured business analysis at a level that often matches experienced professionals, but in a fraction of the time and cost. Coding is also better. GPT-5.2 is more reliable at debugging production code, refactoring large projects, and shipping fixes end t