Tech giant Elon Musk announced the revival of a beloved relic of the past in an announcement on X, promising a resurrection of the 2010s app Vine – but with a twist. Online users had mixed reactions to the announcement, especially after Musk's controversial AI program began referring to itself as "MechaHitler" on X. Here's what we know.

Elon Musk's social media company X is bringing back popular video-sharing platform Vine in "AI form", the billionaire tech-entrepreneur said on Thursday, almost nine years after the app was discontinued.