According to this press announcement from March 1st 2018, the Alibaba Cloud offers access to an 11 qubit quantum computer via their cloud services. Quote:
Alibaba Cloud, [...] and Chinese Academy of Sciences (CAS) [...] have launched the superconducting quantum computing cloud, featuring a quantum processor with 11 quantum bits (qubits) of power. [...]
Users can now access the superconducting quantum computing cloud through Alibaba Cloud’s quantum computing cloud platform to efficiently run and test custom built quantum codes and download the results.
However, I have been unable to find any mention of this service anywhere else on their site than in the press announcement. No documentation. No mention in the "Products" overview. Nothing. Does anyone know, how to get started here?