ChatGPT Sketch lets you doodle prompts for AI images

On September 8, 2026, OpenAI released ChatGPT Images 2.5 with a new Sketch feature that lets users type @Sketch, draw a rough doodle inside the chat, add a natural-language description, and receive an AI-generated image that blends the sketch with the instructions, allowing inline edits and up to 50 % faster generation.