Fish Audio has raised $52 million in a seed round co-led by Coreline Ventures and Capital Today, money that arrives at a Palo Alto text-to-speech company that has spent the past year giving its models away and charging for everything around them. Fish Audio says more than 8 million people now use those models through either the open-weight releases or its hosted platform, and that the business is running at $21 million in annual recurring revenue. The round was disclosed on July 28, 2026, with…