In the article, it states that the two deals will cover the entire cost of SpaceX's AI buildout in 18 months. OpenAI and Anthropic would kill for that kind of cashflow.
xAI is a failure of an AI company from a consumer perspective. They invested a large amount of money into owning their own infrastructure, while driving away consumers with their right-wing or "alt right"-ish branding and having a reputation of X users abusing the AI services.
Turns out there was another company with a much better reputation for which the compute is a better fit. Now that the data centers are being put to use, they actually make them a little bit of money instead of losing money.
That story roughly tracks the one I hold. One piece that's missing is that grok's / X's image also made it radioactive to the best researchers. 'Aligned AGI' is an easier sell to the best engineers than 'abusive neo-Nazi chatbot with a porn problem'.