If I were an investor in xAI I would be furious about this. They're almost certainly overpaying for Twitter and there's definitely going to be litigation.
Edit: It sounds like the combined entity is taking on Twitter's $12 billion of debt from when it originally went private. As of last December xAI had raised "more than $12 billion" in total [1], so the deal attaches Twitter's debt to that ~12 billion pot of VC money. Unless I'm really misunderstanding something this deal looks like a bailout of Twitter and a huge new liability for xAI.
It's definitely possible my hot take is wrong and the xAI investors support the transaction. I hope so because if not there's going to be some brutal lawsuits over this.
[1] https://www.nytimes.com/2024/12/24/technology/elon-musk-xai-...