DeepSeek just took the market by storm, launching a large-language artificial intelligence (AI) model very similar to OpenAI's ChatGPT but at a fraction of the development cost, at least according to the Chinese start-up behind the technology.

AT&T (T) dropped its fourth-quarter earnings on Jan. 27, propelling its stock to new 52-week highs. Shares climbed 6.25% in the day’s trading session after the company exceeded Wall Street expectations and announced plans for substantial investments in artificial intelligence (AI).

The growing use of AI in health care settings has some states searching for guardrails. (Scripps News)

Artificial intelligence (AI) has been one of the hottest segments of the stock market for the last two years. Many investors are focused on pick-and-shovel plays like chip supplie