Exclusive: OpenAI signs deals with Magnite, PubMatic to fill unused ChatGPT ad space

[The Information] OpenAI has signed deals with Magnite and PubMatic, whose software enables advertisers to place ads on websites and other digital platforms, to fill unused ad space on ChatGPT, according to three people familiar with the deals. Advertisers are using Magnite and PubMatic's software to set up those placements, the people said. OpenAI, Magnite and PubMatic did not comment.