[Baidu Open-Sources Wenxin 5.5 Flash Base, Shares Rise Over 2% in Pre-Market Trading] According to Jinse Finance, on November 5th, Baidu's Hong Kong-listed shares closed up over 5%, and its US-listed shares rose over 2% in pre-market trading. The news comes as Baidu officially open-sourced its latest foundation model, Wenxin 5.5 Flash Base. This model uses the MoE architecture, has a total of 280 billion parameters, and each token activates 14 billion parameters. It has achieved state-of-the-art (SOTA) performance for models of this size in multiple benchmark tests, including knowledge, reasoning, mathematics, code, multi-language, and long context.