Fine-tune vs Embedding

The Embeddings API returns a vector - a list of numbers like this:

[
        -0.006929283495992422,
        -0.005336422007530928,
        ...
        -4.547132266452536e-05,
        -0.024047505110502243
      ],

It measures the relatedness of strings. You can use it to implement services like recommendation engines, search, and classification.

Fine-tuning returns text bot response improved by providing examples.

I recommend this post to learn more about embeddings : Introducing Text and Code Embeddings