Meta headquarters in California. JOSH EDELSON/AFP via Getty Images)Meta just launched Movie Gen, an AI video generator to compete with OpenAI's Sora.Movie Gen can make videos with accompanying audio using a text prompt. It can also edit by prompt.Meta joined the video generation race later than OpenAI and Google.Meta released a new AI video-generating tool on Friday that is also the company's latest volley in its battle with OpenAI for AI supremacy."Today, we're excited to premiere Meta Movie Gen, our breakthrough generative AI research for media, which includes modalities like image, video, and audio," the company said in a press release.