OpenAI CEO praises Tesla's 'flying' Roadster, says 'Good job Musk'. OpenAI CEO Sam Altman praised Tesla's newly unveiled second-generation Roadster, which can briefly fly and hover using cold-gas thrusters. "Wow, the new Roadster looks quite amazing. Good job, Elon Musk," Altman said in a post on X. The praise comes amid a strained relationship between the two, who co-founded OpenAI in 2015 before becoming bitter rivals.