They can't for the same reason that cab companies can't make their drivers employees: they would have to employ far, far fewer of them than they do on contingency.
We had to move my non-ambulatory[1] father from Mississippi to Virginia a couple of months ago. The vehicle probably didn't have all the staff and equipment of an ambulance but it did have an RN, a crash cart, and some other expensive crap that goes "ping". The cost was $3K for an 800 mile trip (slightly more because I included the "snacks and a DVD player" package).
[1] Oh, holy crap, I just got why ambulances are called that
HTML at the time was intended as an application of SGML
Worse, it was an extended superset (ha!) of SGML. At least 20 years ago, SGML::Parser would reject some valid HTML documents.
That said, it was really easy to type correctly in a text editor (especially compared to actual SGML), particularly one that indented and matched tags for you.
Inference providers have been getting a firehose of investor cash to keep the chips running (and are looking around very nervously as that firehose starts to sputter).
All "density" means is that it's a quotient; I use spectral densities daily and that's "count per Hertz" which weirdly enough works out in normal units to be seconds.
No I mean Anthropic has only claimed a profitable quarter based on xAI giving them two months of free compute, and both Anthropic and OpenAI are counting discounted revenue as actual revenue. They haven't found a way to sell inference for less than it costs them yet, and when they tried earlier this quarter their customers bailed.
If they had high margins they wouldn't be issuing senior debt with a 18.5% coupon payment (and failing to fully subscribe it), nor would they need Elon to give them two months of free compute in order to appear profitable for a single quarter.
The relief available to a licensor for violating a license use restriction is cancellation of the license. And they're free to do that, just like Alibaba is free to pay somebody in Hyderabad $20 to make another one.
DMCA can't apply in this case because (this is the "C" in its initialism) it is based on copyright protections, which the output of Claude is not eligible for.
My long-term prediction for the sector is that frontier models will be so expensive that they will only be available for grant-funded projects at research institutions, like supercomputer clusters were 25 years ago.