While I think SpaceX is still horribly over-valued they at least have a diverse line of businesses that are very hard to copy.

Anthropic is a one trick pony and the world is discovering lots of other cheap ponies that do the same trick.

I suspect SpaceX is going to be the opposite of what will happen with Anthropic. With SpaceX I think the overwhelming majority of people didn't initially understand what Starship is, how far along it is, or what it even means in terms of its impact on the pathway of getting humans to be a multiplanetary species. So it was greatly undervalued and zoomed upward.

With Anthropic I think a lot of people haven't really realized the trend line of cost of "AI" (both in literal $ terms, and compute costs for local operation) or what open weight systems will do to the market in the "long run", where long run in this case means the next year or two. I don't think any LLM company is going to come out a winner in the longrun, because the price for LLM output is going to approach $0 with no chance for a moat whatsoever.