Z.ai founders tied to research funded by China institute UK flagged as spy front

What's the deal? Four of the five founders of Z.ai (Zhipu AI), including CEO Zhang Peng and Tang Jie, worked on a 2018–21 research project co-funded by the China General Technology Research Institute (CGTRI), which the UK's MI5 says has "very strong ties" to China's main intelligence agency. The link was established through publicly available Chinese research papers and a September 30, 2026 MI5 espionage alert, according to Bloomberg. The alert itself did not name Z.ai.

What MI5 said: MI5 said CGTRI's primary purpose is to fund academic research that directly improves the Ministry of State Security's "technical capability for espionage." The bulletin — described as first-of-its-kind — urged UK universities to review ties with CGTRI and warned of potential criminal consequences under the National Security Act 2023 for continuing research it funds.

The project: The nearly four-year effort, worth US$404.3K, built AI to scan social media, spot events and map people's connections, including a knowledge base of "China-related key persons." A CGTRI engineer and one Z.ai founder led the work; three other founders contributed, according to a previously unreported 78-page report published on a Chinese government funding website.

What's unclear? It is not known what, if anything, Z.ai's founders knew about CGTRI's alleged intelligence ties. MI5 itself noted that academics may not be aware CGTRI is funding the projects they contribute to.

The response: A spokesperson for China's embassy in the UK called the allegations against CGTRI "baseless." Z.ai and the four founders did not respond to requests for comment, and a CGTRI representative said the institute does not communicate externally.

Why it matters: Z.ai, spun out of Tsinghua University, is already under US scrutiny — Washington restricted its access to American technology in 2025 over allegations it aided the military with AI research, and officials have since accused it of systematically extracting proprietary knowledge from US rivals.

The signal: The episode shows how scrutiny of research funding and foreign collaboration can spill onto Chinese AI firms as the US and China race on the technology. But the distinction is key: an alleged funder link is not evidence that the company or its founders took part in espionage.

Read more: The Straits Times, Bloomberg Law, MI5