How artificial intelligence (AI) will impact workplaces is a central question for the future of work, with potentially significant implications for jobs, productivity, and worker well-being. Yet, knowledge gaps remain in terms of how firms, workers, and worker representatives are adapting. This study addresses these gaps through a qualitative approach. It is based on nearly 100 case studies of the impacts of AI technologies on workplaces in the manufacturing and finance sectors of eight OECD countries. The study shows that, to date, job reorganisation appears more prevalent than job displacement, with automation prompting the reorientation of jobs towards tasks in which humans have a comparative advantage. Job quality improvements associated with AI – reductions in tedium, greater worker engagement, and improved physical safety – may be its strongest endorsement from a worker perspective. The study also highlights challenges – skill requirements and reports of increased work intensity – underscoring the need for policies to ensure that AI technologies benefit everyone.