Ivy Liu The platform that can figure out how to prove AI chatbots can drive an outcome will unlock a budget category that doesn’t exist yet. OpenAI just took big steps toward that threshold: turning on cost-per-click ads inside ChatGPT. And it is on the hunt for its first advertising marketing science leader. CPC ads are the more immediately significant move of the two since it gives those marketers who are currently testing advertising there the option to pay when someone actually clicks on the...