Zhipu AI
z.ai
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Overview
Z.ai, formerly known internationally as Zhipu AI (and Beijing Zhipu Huazhang Technology Co., Ltd. in China), is a major frontier artificial intelligence company headquartered in Beijing, China. Originating from research at Tsinghua University in 2019, it is widely recognized as one of China's core "AI Tigers" and a leading foundational model developer. In 2025, the company rebranded internationally to Z.ai and expanded its open-source and commercial offerings worldwide.