Alphabet said it is rolling out its artificial-intelligence chatbot, Bard, in Europe and Brazil on Thursday, the product’s most significant expansion since its February launch and pitting it against Microsoft-backed rival ChatGPT. The company is adding more languages to the service and introducing new productivity and personalization features. Both Bard and ChatGPT use large language models that generate text to hold conversations with users and answer myriad prompts — such as, “What is the weather today?” or, “Write a poem
