ChatGPT Canvas

Canvas opens a dedicated editor alongside the chat in ChatGPT, so instead of getting a code block or a wall of text you get a real workspace where ChatGPT can make targeted edits, leave comments, or adjust just the length or reading level of one section without regenerating the whole document. For code, it adds inline debugging and test generation. It's really a shift in what ChatGPT is — from a chatbot you copy answers out of, to somewhere you actually do the work.