BRUSSELS: The AI chatbot ChatGPT and online platforms Reddit and Roblox will have to comply with tougher safety rules after the EU added them Monday to a list of digital services subject to greater legal scrutiny.

"ChatGPT, Reddit and Roblox will now be held to a higher standard of scrutiny and accountability in the European Union, in line with their large impact on our citizens and society," the bloc's technology chief Henna Virkkunen said.