Plus has unlimited text chats, custom GPTs and image generation, so ad variants, emails, landing-page drafts and quick visuals come from one subscription. Free also has unlimited text chats, on GPT-6 Luna.
Pick it if: you write most of the copy yourself and want a fast drafting partner.
Where it falls short: Output quality varies between model tiers, and the tier lineup can confuse.
Full ChatGPT pricing →