A bipartisan group of Pennsylvania state legislators recently hatched a plan to regulate the use of artificial intelligence in health care. This year alone, more than a dozen states have passed laws regulating AI in health care, according to Manatt Health, a national health services firm. Arizona, Maryland, Nebraska and Texas now ban insurance companies from using AI as the sole decision-maker in prior authorization or medical necessity denials. Nevada and Oregon prohibit AI from representing itself as a health care provider, while several other states — including Utah and New York — have regulated the use of AI-enabled chat bots in mental health. State AI legislation has been sponsored by both Democrats and Republicans and has been approved with bipartisan support, a reflection of broad concerns over its expanding use in health care.