The topic „Critical analysis of artificial intelligence and jobs“ is extremely important in today's world, where artificial intelligence (AI) is increasingly used in various industries and sectors. The use of artificial intelligence in business can improve the efficiency, productivity and quality of products and services, but it can also have a significant impact on jobs and employees. In some cases, AI can replace the human workforce, while in others it can improve existing jobs and create new ones. This paper analyzes general AI implementations in the world and three case studies where the relationship between artificial intelligence and jobs will be clearly seen and whether the implementation was a positive or negative segment on the human workforce, i.e. employees as well as on the business itself. We took three large corporations as examples to compare the relationship between the implementation of artificial intelligence in workplaces: Amazon, McDonald's and DHL. Through a comparative analysis of publicly avaliable and relevant financial statements of those three corporations, professional literature and internet sources, three basic hypotheses of a critical analysis of the relationship between artificial intelligence and workplaces will be posed and answered; comparison of business profits/losses, comparison of staff costs before and after AI implementation and positive/negative impact on jobs.