Lesson 6 of 8

Canvas

6 min read

Your draft is 90% there, but one sentence is clumsy. So you ask ChatGPT to "try again" — and it rewrites the whole thing, losing the good parts. There's a better way.

Edit, don't re-ask

Canvas opens your text or code in a panel beside the chat. Instead of regenerating everything, you point at one line and change just that — shorten it, fix the tone, rewrite a function — while the rest stays exactly as it was. It's editing, not re-rolling the dice.

A whole-draft redo gambles the parts you already liked. A targeted edit keeps them and fixes only what's broken.

For writing and code

Canvas works for prose and for programs. It can shorten or lengthen, adjust reading level, add comments to code, or point out bugs — always on the piece you selected. And it keeps versions, so you can step back if an edit made things worse.

Canvas turns ChatGPT from a one-shot generator into a document you and it edit together, line by line.

Reach for Canvas the moment a reply is close but not right. Fixing the one weak line beats re-generating and re-reading the whole thing to see what changed.