Your vendors plans to grow fast and break things shouldn’t affect your ability to provide your service to your customers.
Anthropic has not been a reliable vendor. Previously, when they were compute starved, the quality of their models degraded in the weeks before new releases, without warning to their customers. You just suddenly got a worse service. I wrote a little more a few months ago: https://news.ycombinator.com/item?id=47375818 And then there’s the transparent downgrading they did with Fable.
If your running a business, that’s not what you want to be relying on.
Any sane company should not be too deeply tied to any one AI vendor at the moment and be ready and able to switch with a timeline and cost as acceptable to the org.
TLDR: Be prepared to use multiple AI vendors.