I can only guess. 1. A company the size of Amazon has enough resources and unique internal data no one else has access to that it makes sense for them to build

I can only guess. 1. A company the size of Amazon has enough resources and unique internal data no one else has access to that it makes sense for them to build their own models. Even if it's only for internal use 2. Amazon cannot beat Anthropic at this game. They are far a head of them in terms of performance and adoption. Building these models in-house doesn't mean it's a bad idea to also invest in Anthropic