Creating embeddings worked with cohere.Client but cohere.ClientV2 returned "Resource not found error" against an Azure deployment of Cohere-embed-v3-english. Maintainer mkozakov reproduced it against Azure and got the fix from the Azure side: the model must be deployed as a serverless endpoint, which means the "Deploy models to Azure AI model inference service" setting under Preview Features has to be OFF when you deploy. Also do not append /v1 to the base URL. The maintainer confirmed deploying Embed V4 without that toggle enabled works.