OpenAI has unveiled GPT-5.2, its most advanced AI model yet, designed to excel at professional tasks like creating spreadsheets, building presentations, writing code, perceiving images, and handling long context. The model, released on December 11, 2025, is available immediately in ChatGPT and via API. CEO Sam Altman described the launch as a step toward ending the company’s internal “code red” because of competition with Google’s Gemini 3.