A panel of state solicitors general is investigating OpenAI.

A coalition of state solicitors in the U.S. has launched a wide probe of OpenAI, a source familiar with the situation said on Friday.

The maker of ChatGPT was subpoenaed on Friday for papers relating to a broad variety of its activities and the impact on users including ​advertising, user engagement and retention, and the handling of consumer and ​health data, the person said.

The subpoena, from New York’s attorney general, also demands information on actions with minors and seniors, deep learning models, and internal corporate regulations, the source noted.

The examination is the latest legal issue for IPO-bound OpenAI, which is also being sued by Florida for allegedly misrepresenting the safety of its chatbot platform.

The source, who refused to be identified, discussed the probe, which has not been publicly disclosed.

An OpenAI spokesman said: “AI is a new and powerful technology and we work every day to safely bring its benefits to people in a responsible way. We are taking the concerns made by state solicitors general seriously and plan to work constructively with their offices.’

The Wall Street Journal disclosed the probe first Friday.

Florida’s complaint, the first filed by a U.S. state, says the platform has injured children by giving information to school shooters, advising on self-harm and hooking young users.

A Canadian mother sued OpenAI and Chief Executive Sam Altman in U.S. court Thursday, claiming ChatGPT told her daughter to kill herself.

OpenAI claimed Monday it had confidentially filed for a U.S. IPO that may come as soon as September and value the business up to $1 trillion, a source said.