Risk: Moderate

Training AI data as a side hustle can be risky for someone starting from scratch, especially if they can't afford to lose money. Beginners in this field could potentially lose money invested in training tools, courses, or software, as well as time and energy spent learning and implementing AI data training techniques. Startup costs for necessary equipment and training materials range from $500 to $2000 and may not pay off immediately, leading to initial financial losses. Online discussions mention instances where beginners have spent money on training resources without seeing significant returns. I'd rate the risk a 2 out of 5 because there is a moderate to high chance of losing money, particularly at the initial stages of learning and setting up the AI data training business.