The apartment where OpenAI CEO Sam Altman and Greg Brockman first developed ChatGPT, has been listed for $1.55 million in San Francisco's Inner Mission neighborhood. The three-bedroom, two-bathroom unit is spread over two stories and was previously rented by Brockman, one of OpenAI's six co-founders. The building was used in "Artificial," a new movie about Altman's controversial firing and rehiring at the company in 2023. The property's ties to the rise of Open AI will increase in the coming months. In March, OpenAI was valued at $852 billion.