Sam Altman on the left, OpenAI logo displayed on a phone screen and Elon Musk on the right
Elon Musk first took legal action against OpenAI in March before dropping it in June.
  • Elon Musk is once again suing OpenAI, this time claiming he was "deceived" into cofounding the firm.
  • Musk's lawyers claim Altman and Brockman "manipulated" him by playing on his concerns about AI safety.
  • Musk first took legal action against OpenAI in March on similar grounds but dropped the suit in June.

Elon Musk is having another go at suing OpenAI and cofounders Sam Altman and Greg Brockman.