Canva Brush: The Real Design Test Is What Stays Put

Canva announced Canva Brush on October 29: a vision-language model intended to edit existing designs, from one line of copy to multiple slides. Canva says it’s available for supported Canva AI edits to Pro subscribers, with wider availability to come. The company also reports “up to 69% faster” editing and “46% lower cost” per task than its previous design agent—figures from Canva, not independent testing. Canva Research’s announcement

The interesting design problem isn’t just making a requested change. It’s preserving the parts the creator didn’t ask to change: hierarchy, tone, and the slide’s job in the story. Canva says Brush keeps designs editable; whether that feels like meaningful control will depend on how reliably those untouched parts remain intact.

A useful first test: ask it to revise one heading in a pitch deck, then check whether everything else still supports the same message. What would you want an editor like this to preserve by default—and make easy to undo?