SAN FRANCISCO, April 14 -- A man who allegedly threw a Molotov cocktail at Sam Altman's luxury California home was trying to kill the boss of artificial intelligence giant OpenAI, US officials said Monday.

The claims came as prosecutors levied federal charges against Daniel Moreno-Gama, 20, over the attack on Friday in San Francisco.

The Department of Justice said Moreno-Gama had travelled from his home in Texas to carry out the attack on Altman, whose company is behind the popular ChatGPT chatbot.

"Violence cannot be the norm for expressing disagreement, be it with politics or a technology or any other matter," said Acting Attorney General Todd Blanche.

"These alleged actions - which damaged property and could well have taken lives -...