Generating Embeddings with OpenAI API

I believe this is a simple question, I am making an AI bot. I have new data that I need to create embeddings for and generate a response based on cosine similarities. Which version is faster and more efficient? “gpt-4” or “gpt-3.5-turbo”

For embeddings? You can’t use either for embeddings, unfortunately.

https://platform.openai.com/docs/guides/embeddings/embedding-models