Chinese search engine Baidu has launched two new AI models — Ernie 4.5, the latest version of the company’s foundational model first released two years ago, as well as a new reasoning model, Ernie X1.

DeepSeek has emerged as the new standard for AI model makers to beat after launching R1 just before Christmas. As a reasoning model, R1 stood out for matching the capabilities of the best U.S.-made AI models, despite its maker only spending a small fraction of the cost its rivals had spent in training it.