Save Davinci after Fine-Tuning and their cost usage

Please, I have questions urgently.
when I fine-tune Davinci model, and I want to save it in my local, is this possible?

and if I will save this model in their part, when I will use this model, I will billed by tokens all time, or just in once for Fine-Tuning.

It is not possible to save the model locally, it will be kept on OpenAI’s servers
You will be billed for the initial fine tune and then tokens as they are used at the fine tuned model rates here :

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