How to Connect Custom GPT?

As a newbie, I need some help. Is it possible to connect to a custom GPT? If so, how would one do this on a Chat Completion?

Welcome to the Make community!

Custom GPTs (available only via ChatGPT.com), has no API for it. Hence it will never work on Make.

Do not buy ChatGPT Plus, it doesn’t work on Make

“ChatGPT Plus” and “OpenAI GPT-4 models” are two separate products.

You might have bought the consumer chat “Plus” version at chat.openai.com, which is NOT compatible with Make.

Make uses the “OpenAI GPT-4 models”, only accessible via the OpenAI developer platform.

OpenAI APIs for developer (commercial) use does not have any free plan.

To resolve this issue,

  1. You can buy credits on the OpenAI Developer Dashboard, under Accounts > Billing page

  2. Next, go to the Usage Limits page, and set the Monthly budget field to the same as the value above (e.g.: 120), then save your changes.

More Information

For more information, see

Hi! Thank you very much for the helpful reply. I didn’t realise they were separate products—I seem to have both. Am I right in saying that the GPTs you generate on the Plus product are similar to the assistants on the dev platform? So to call on custom trained data I’d need to move my custom GPT to the dev platform’s assistants so to speak?

That is correct, you can create “Custom Assistants” and they have thread IDs that you can store to resume an earlier thread later on.

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