Can anyone fine-tune the GPT-3 model on commodity hardware without GPU?

  • What I meant is can we fine tune available GPT-3 equivalent models?
  • For example, we have only access to GPT-J.
  • Can we fine-tune GPT-J with commodity hardware or lets say with only basic GPU such as 1with one RTX 3080.

Can we fine-tune these models (not training from scratch)?

Or will it need high-end infrastructure with GPUs?


1 Answer 1


The weights of GPT-3 are not public. You can fine-tune it but only through the interface provided by OpenAI. In any case, GPT-3 is too large to be trained on CPU.

About other similar models, like GPT-J, they would not fit on a RTX 3080, because it has 10/12Gb of memory and GPT-J takes 22+ Gb for float32 parameters. It should possible to fine-tune some special versions that use int8 precision, like this one.

  • $\begingroup$ @neo sorry for my ambiguous question. Updated with further detail. $\endgroup$
    – Exploring
    Nov 16, 2022 at 22:54
  • 2
    $\begingroup$ I updated my answer with the new information you provided. $\endgroup$
    – noe
    Nov 16, 2022 at 23:12

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