Baidu Inc. shares fell by the most in seven months as the newest version of its artificial intelligence model underwhelmed investors, denting hopes for it to regain ground lost to peers.
The stock fell as much as 9.8% Friday in Hong Kong following the unveiling of Ernie 5.0 at a conference. The lack of a wow factor in the latest upgrade of its flagship model disappointed after a big gain in the shares, which are still up more than 40% on the year.