The ergonomics of most of these AI libraries are built around using whatever models they provide integrations for: according to the file you linked retries won'

The ergonomics of most of these AI libraries are built around using whatever models they provide integrations for: according to the file you linked retries won't even work unless you go and roll them in your implementation. I'm sure someone will open a PR for Anthropic/Cohere/etc. but a quick glance made it pretty clear they made it with OpenAI-first in mind, or even low hanging fruit like retries would have been abstracted away at a higher level.