Generative AI-related job postings in the United States jumped about 20% last month as companies look to harness a technology that has been widely touted as the next big growth driver, according to data from job portal Indeed. The May figure, at 204 per million job postings, was also more than double the 2021 level and underscored the buzz around AI, sparked by the runaway success of OpenAI's ChatGPT.