Digital Policy Commissioner Tony Wong on Saturday said his office plans to review newly-published guidelines on artificial intelligence use at least once a year.

Last month, the Digital Policy Office released a document on generative artificial intelligence aimed at developers, service providers, and users.

Speaking on an RTHK radio programme, Wong said AI technology constantly changes, so guidelines must be regularly updated.

"We don't have a deadline. But I think we should update each year, or even shorter," he said.

"That's because technological development is so rapid. If there's a new application or risk, the guiding principles may need to be changed."

He said each industry should have risk management measures that cover artificial intelligence use.

Government departments have adopted the AI document application HKPilot, developed by the Hong Kong Generative AI Research and Development Centre.

Wong said that more than 15,000 staff had tried the application. Its functions include summarising and analysing documents.

Wong also said the government's "iAm Smart" app, which is used as a platform for government departments, has seen over 3.5 million registrations.

He said he hoped this figure would rise to four million by the end of the year when more functions would be available.