Ivy Liu Advertising in ChatGPT is already getting cheaper. The rate advertisers pay to reach every thousand users has fallen from $60 at launch nine weeks ago to as low as $25 now — and counting. It’s early days, but marketers quoted Digiday a range of prices. Ad agency Jellyfish is currently onboarding its first client into the pilot. Jai Amin, the agency’s chief of media activation, said that while the $60 base rate holds, he’s seeing averages closer to $45 depending on composition for invento...