My main use case for Cohere is that it's a good embedding model. I have used it with Titan, but Cohere came out better.
A specific example of how I've used Cohere for embeddings is when I was working with one of our clients where we were establishing a chatbot that can help us go through 31 PDFs. For embedding, we used Cohere and Titan, and Cohere was a superior product.
I have integrated Cohere in that chatbot project using SageMaker, and it was an easy API call that I used.