A new startup says it can make it easier for brands to ramp up the volume and quality of their content on social media, with the help of artificial intelligence. Justin Fuisz, who founded the interactive video ad startup Fuisz Video in 2013, is rolling out Octi, a video technology company designed to help marketers pull together video shot by teams on the ground at live events and use that content to populate their various social media feeds. Marketers these days have an ever-pressing need to produce more and more content for their social media channels. But feeding that beast often requires paying multiple agencies to crank out post after post--and the quality of such content can vary widely. Instead, Octi allows marketers to shoot videos using multiple cameras at the same time and then uses artificial intelligence to automatically produce a seamlessly edited single clip to be distributed on social media, according to Mr. Fuisz.