Grouphug, a stealth-mode startup, plans to use AI inside WhatsApp groups.The app, led by Felix Petersen, aims to generate memes from the archive of a group WhatsApp chat.Grouphug has raised a €1.5 million ($1.7 million) pre-seed round led by Blueyard VC.The company plans to launch a platform to generate more value out of WhatsApp groups using generative AI.