Cake, a managed open-source AI infrastructure platform, announced it has raised $13MM to bring cutting-edge AI to the mid-market. The recent seed round was led by Gradient, Google's early-stage AI fund, with prior pre-seed funding and participation from Primary Venture Partners. Gradient and Primary were joined in the round by Alumni Ventures, Friends & Family Capital, Correlation Ventures, Firestreak Ventures, and many industry-veteran individual investors.