Is GPT3 downloadable or is it available through API on OpenAI

I want to know if I can download GPT3 on my computer and re-train it using my documents. Or is it available through the API on OpenAI?

The “finetune” api endpoint is what you want, I think.

Start here

Yes i want to download GPT3 and fine tune it with my documents. Is this possible?

You don’t need to download the model to finetune it. Please refer to the shared linked resource in my answer. Linking again.

Even if you could download it, I doubt that you would have the computation resources to do the fine-tune yourself, as the model is huge!

Fine-tuning - OpenAI API