These three companies can do great while their valuations go nowhere.
The problem there isn't the models, it's consumer hardware. Even 16GB cards aren't the norm, and even with massive improvements in per-parameter performance we probably still need 48GB memory to get models that feel smart enough to trust.
If you scoped it to “average gaming desktop”, double digit VRAM is pretty normal at this point. If costs came down, I imagine the higher end GPUs would start including enough VRAM for 30B-ish models.
How? They're building out on debt. The investors need to offload at a profit otherwise the company can't sell more shares to acquire the cash needed (share price too low).
Sure, it's possible that a recent IPO does poorly but the company soldiers on regardless, but it's not likely.
SpaceX sort of is. OpenAI almost certainly is. Anthropic doesn't appear to be.