Generative AI (gen AI) has revolutionized workplaces, allowing professionals to produce high-quality work in less time. Whether it’s drafting a performance review, brainstorming ideas, or crafting a marketing email, humans collaborating with gen AI achieve results that are both more efficient and often superior in quality. However, our research reveals a hidden trade-off: While gen AI collaboration boosts immediate task performance, it can undermine workers’ intrinsic motivation and increase feelings of boredom when they turn to tasks in which they don’t have this technological assistance. Our findings have big implications for companies looking to leverage gen AI’s potential gains without hurting their employees’ drive when it comes to their other responsibilities.