Shares of Google parent Alphabet drop 4% after disappointing ad revenue

Alphabet disappointed Wall Street on Tuesday as holiday season advertising sales came in below expectations and overshadowed the company’s efforts in artificial intelligence and the cloud.Shares fell more than 4% in after-hours trade.Google, inventor of foundational technology for today’s AI boom, faces tough competition from the two players that have captured the business world’s attention, ChatGPT’s creator OpenAI and its financial backer Microsoft.Google is bringing a powerful suite of models called Gem ...