Z.ai is at least owned by a public company, so there might be something in the financials.

https://en.wikipedia.org/wiki/Z.ai

>> "On 8 January 2026, Z.ai held its initial public offering on the Hong Kong Stock Exchange to become a listed company.[24][25][26] It is considered to be China's first major LLM company that went through an IPO.[26] In February 2026, JPMorgan Chase recommended to investors of purchasing stocks of the company alongside MiniMax.[27]"

https://www.zhipuai.cn/investor_relations/

But I haven't looked into it.