This was their play all along with their unethical data collection practices: let others use the APIs to discover the applications, then use the data against them to offer integrated solutions in every vertical of interest. Cursor, once Anthropic’s biggest customer, was one of the early ones they screwed.

They are also fighting for their lives because these insane valuations simply aren’t justified by being dumb pipes. Fortunately, open weights models are widely available and have crossed a threshold of usefulness that cements their place as good substitutes.