Mirage, the maker of video editing app Captions, has raised $75 million in growth financing from General Catalyst’s Customer Value Fund (CVF). Over the past year, the startup has made significant changes both to its product and corporate identity. The startup rebranded from Captions to Mirage to position itself as an AI lab that produces different models and also caters to industries like advertising and marketing. It has also trained a model specifically for pacing, framing and attention dynami...