Stable income: Somewhat stable

Custom GPT Builder is a side hustle where individuals create and sell their own AI text generation models. Setting up costs range from $200 to $500, and it typically takes 3 to 6 months to start making a profit. From online sources and personal experience, it appears that earnings can fluctuate significantly. While some users generate consistent income, many face unpredictable revenue streams due to market changes and competition. If your best friend were to pursue this full-time, it would be considered a risk due to the potential instability of earnings. I'd rate it a 2 out of 5 because while some individuals do earn consistently, many others experience volatile income patterns.