Sources: advertisers that bought ChatGPT's first ad campaigns say the process was low tech and that they haven't received much data showing if their ads worked (Catherine Perloff/The Information)

Catherine Perloff / The Information:
Sources: advertisers that bought ChatGPT's first ad campaigns say the process was low tech and that they haven't received much data showing if their ads worked  —  As OpenAI prepares to open up ad sales to more marketers next month, it is trying to address what some advertisers say was lacking in the initial ad sales offering.

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