Meta's Mark Zuckerberg says Threads has passed 100 million signups in 5 days

Threads, the new social-media service from Meta, reached more than 100 million signups over the weekend, according to Meta CEO Mark Zuckerberg. That means Threads is now the fastest-growing app in history, outpacing both ChatGPT and TikTok. 

The 100 million signups represent "mostly organic demand and we haven't even turned on many promotions yet," Zuckerberg posted on Threads on Monday morning. "Can't believe it's only been 5 days!"

ChatGPT previously held the crown as the fastest-growing consumer app in history, amassing 100 million monthly active users within two months. TikTok required nine months after its debut to build the same user base, while Instagram took more than two years to build up to 100 million users.