Australia's CBA flags surging AI costs as tasks grow complex, slams 'work slop'

Commonwealth Bank CEO warns AI costs will rise unpredictably as firms use it for more complex tasks, since corporate billing (by “tokens”) can scale non-linearly.
CBA is positioning itself as a big AI adopter — it hosted OpenAI’s Sam Altman and hired a chief AI scientist.
Comyn says one upside of higher AI costs may be curbing low‑value “work slop,” forcing stricter scrutiny of AI spend through 2026.