The project was announced last month. OpenAI at the time said that Stargate would "begin deploying $100 billion immediately." However, Musk questioned whether the companies involved in the initiative had sufficient capital to finance it, stating "they don't actually have the money."
Speaking on Tuesday, Altman took a swipe at Musk, saying: "I'm not the one who tweeted funding secured. I just actually try to show up and build."
The remark was a reference to Musk's controversial claim of 2018 that he had "funding secured" to take his electric car firm Tesla private at $420 per share.