Musk on the call spent most of the time talking about promise of artificial intelligence (AI), the Grok AI model-powered Optimus humanoid robot and fully self-driving Robotaxi service. “We're at a critical inflection point for Tesla and our strategy going forward as we bring AI into the real-world,” Musk said in the opening marks. He touted  the third-version (V3) Optimus, which could be unveiled in the first quarter next year.