Jeff Bezos has launched Project Prometheus, a new artificial intelligence startup, marking his return to an operational role as co-CEO since stepping down from Amazon in 2021. The startup has secured $6.2 billion in early funding, with contributions from Bezos himself, and aims to develop AI applications in aerospace, automotive, and robotics sectors. Elon Musk reacted to the announcement by mocking Bezos on Twitter, calling him a 'Copy Cat,' highlighting the ongoing rivalry between the two tech moguls in the AI and space industries.