OpenAI projected $100-billion earnings in advertising revenue by ​2030, with expectations to generate $2.5 billion in 2026, reported Axios. The company expects that its ad revenue will surge to $11 billion in 2027, $25 billion in 2028 ​and $53 billion by 2029, the report added. OpenAI started testing ads in ChatGPT for some users in the US in February.