OpenAI announced on Tuesday that it is shutting down Sora, a TikTok-like social app that launched six months ago. OpenAI did not give a reason for the shut down, nor did it share information about when it will officially be discontinued. When Sora first opened up as an invite-only social network, it seemed like everyone was clamoring for an invite. But like Meta’s Horizon Worlds — the company’s virtual reality social platform — which is also in turmoil despite once being central to the company’s infamous metaverse, Sora didn’t have real staying power. Though the underlying Sora 2 video- and audio-generation model is scarily impressive, there was not sustained interest in an AI-only social feed. We’re saying goodbye to the Sora app. To everyone who created with Sora, shared it, and built community around it: thank you.…