DeepSeek last week shook markets with its promises of lower-cost, lower-energy artificial intelligence that could go head-to-head with platforms like ChatGPT. And as interest in the China-based AI developer’s chatbot surged,

Alphabet shares fell 8% on Wednesday as investors balked at the Google parent's slowing cloud growth and planned $75 billion capital spending for the year, underscoring growing fears over Big Tech's escalating artificial intelligence costs.

Google parent Alphabet Inc.’s shares dropped after slower growth in its cloud business contributed to lower-than-expected revenue in the fourth quarter.