Shares in Google parent Alphabet (NASDAQ:GOOG) (NASDAQ:GOOGL) moved lower before midday on Tuesday amid internet chatter that OpenAI (OPENAI) (MSFT) will introduce a new AI-powered web browser, which will compete with the world's most popular search engine,

OpenAI on Tuesday launched ChatGPT Atlas, an artificial intelligence-powered browser built around its popular chatbot that aims to loosen Google Chrome's tight grip on the market.