Alphabet's Google (GOOGL.O) was accused in a proposed class action lawsuit on Tuesday of misusing vast amounts of personal information and copyrighted material to train its artificial intelligence systems.

The complaint, filed in San Francisco federal court by eight individuals seeking to represent millions of internet users and copyright holders, said Google's unauthorized scraping of data from websites violated their privacy and property rights.

The lawsuit filed on Tuesday claims that the company could owe at least $5 billion.

Google general counsel Halimah DeLaine Prado said the company has been "clear for years that we use data from public sources -- like information published to the open web and public datasets -- to train the AI models behind services like Google Translate, responsibly and in line with our AI Principles."