YouTube to Let Creators Reply to Comments Using AI YouTube currently allows users to leave comments on videos, but a new artificial intelligence (AI) feature will allow those who post videos on the site to automatically reply to those comments with automated suggestions. Google, which owns YouTube, is using its pre-existing SmartReply system for the website, which already works for Gmail to suggest appropriate responses to emails. The version coming to YouTube will be even more advanced, as the language suggested will be less formal and will even include emojis.