No, they are not "losing gigantic amounts of money".
They are already profitable and are investing enormous amounts into datacenter buildout to meet demand over the next years.
What are you talking about? OpenAI is losing money, projected a $14B loss for 2026 and is themselves not expecting profit until 2029-30. xAI is losing money, about 3B.
The substack linked below only looks into one tiny sliver of the off-sheet circular financing that dwarfs even the most optimistic revenue growth, but it's a good place to start to understand why this is a bubble and that, yes, Anthropic is in fact "losing gigantic amounts of money":
"Boom and bust is not about revenue. To find that kind of risk, start by reading the balance sheet... [The 2008] bust came from off-balance-sheet instruments."
https://kennyfraser.substack.com/p/anthropic-ipo-part-one-wh...
Patrick Boyle goes into a deep dive that's well worth the watch:
https://youtu.be/Ic1Jf7VlXRM?si=DjiP6LVdEykBlWwU