Summary:
- Elon Musk's new AI company, XAI, has moved into the former headquarters of OpenAI in San Francisco.
- The move signals Musk's continued interest and involvement in the AI industry, despite his recent departure from Tesla's board.
- XAI's relocation to OpenAI's old office space suggests the company may be positioning itself as a competitor or alternative to OpenAI in the field of artificial intelligence research and development.