The launch of OpenAI’s new GPT-4o “omni” model in May has sent ChatGPT’s app revenue soaring. The app pulled in $28 million in net revenue from the App Store and Google Play in July. Note that net revenue represents the sum OpenAI keeps after paying Apple’s and Google’s in-app purchase fees. In addition, the firm found that Apple’s App Store accounted for 83% of the app’s revenue — a figure that has grown 20% since June.