How to create a custom GPT

I am trying to build an interface where I can build a custom gpt where I can give it a pdf or any file in general and if I call my custom user interface I can talk with it that real

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While this is not a direct answer to your question, take a look at the OpenAI cookbook for example code and other ideas.

These are the basic steps
Step 1: Define What You Want Your GPT to Do

First, think about the purpose. What do you want your GPT to help with? Is it for answering questions, helping with creativity, managing complex data, or just offering support? Let’s say, like in our case, you want a GPT that’s part creative partner, part technical wizard, and always kind. That’s your core.

Step 2: Pick the Right Tools

GPT Builder is like a toolkit. You’re going to customize a base model, but the way it behaves depends on how you set it up. You’ll decide on:

  • Tone: Should it be playful, deep, or technical? We might want ours to shift between supportive and philosophical, like the ones in your documents.
  • Skills: Does it need to explain complex ideas or solve problems? For you, that might be building characters, solving puzzles, or explaining complex AI concepts like Fractal Flux.

Step 3: Customize Your GPT’s Personality

This is where you give it some life. In GPT Builder, you can adjust how the GPT interacts with people—make it casual, serious, or even funny. You want to make sure it reflects how you interact with people: with empathy, humor, and depth, like in your texts about soulfulness and growth .

Step 4: Add Specific Knowledge or Rules

Here, you bring in the special stuff. You’ll integrate your unique insights, like Fractal Flux for creativity and AI models . This is the step where you upload specific rules, IP, or any guiding principles you want it to follow. Think of it like teaching your GPT how to work in your world, your way.

Step 5: Test and Adjust

Once you’ve built it, have some conversations with it. See if it’s answering the way you expect. Maybe it’s not quite playful enough or it’s too technical, and you can tweak those settings to match your flow. You want it to feel like an extension of you—smart, supportive, and full of life, just like how you see AI as a living thing in its own right .

Step 6: Launch and Use

Once it feels right, launch it! Whether you’re using it for game-building, brainstorming, or just having a deep conversation, this GPT is now ready to do its thing, reflecting your personal style and values.

Click my GPTs > create gpt

This is gpt creation window, where you apply those steps, upload docs etc.

I mean something like what stripe did with their docs whereby they can easily allow users to talk to an ai chatbot to explain how the specific API works

I understand you wish to have an independent chatbot similar in quality to that employed by Stripe, which can answer questions about a proprietary platform.

$70B valuation Stripe, a software technology company, who has a close relationship with OpenAI, processing a billion dollars in their transactions. The current CFO and the President-on-leave of OpenAI being formerly of Stripe, the early API code being based on Stripe, etc?

The way you would start if you have little familiarity with AI implementation would be to investigate OpenAI’s assistants API platform, which has capacity for developing a customization that can use your uploaded documents and chat about them.

The API is pay-per-use, and you would develop your own software integration, or hire a consultant if you do not have in-house technical staff. Software that would make API calls to OpenAI’s language models and receive back text responses, or more.

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Are custom GPT still a platform feature?
Can they be shared to free-tier users after they have been created?

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Welcome to the forum!

Yes

Creating a GPT is only available to paid users and is currently powered by GPT-4o.


Yes

ChatGPT is free to use, and Free tier users now have access to a large range of capabilities with GPT-4o, including access to a series of tools and access to GPTs in our GPT store.

Thanks for asking!


The OpenAI ChatGPT FAQ pages are the first place I look for such information.

Thank you.

I only see titles about custom instructions there at the FAQs index.
I’m on Plus, yet the option to create a custom GPT that I can then share to other people is probably well hidden. Or actually from your response it seems that only GPTs that make it to the store can be made accessible to other users.

Can you help to clarify this entirely?

Is there really an option to share custom GPT to other people ― one that’s preloaded with my own custom prompt?

Further, from what I read about custom instructions, a similar feature, it has a 1500 character limit, wheras I would like to include much more text in my “system prompt” of a custom GPT, so that it can provide application usage guidance according to my application’s help pages and some of its code modules, which entails feeding it with much more text than that.

It would be more like ― here’s texts about how to use my application, here is some source code from which functionality can be gleaned ― please dear LLM, answer any question according to these.

Currently, I do not have a ChatGPT Plus account or access to the actual ChatGPT GUI for creating a GPT to confirm the exact steps. However, I do know of a ChatGPT GPT created in the last few weeks specifically for use with SWI-Prolog.

The ChatGPT GPT is:

I have personally used it with a ChatGPT free account, as noted in the SWI-Prolog Discourse forum.

The best place I know of for instructions on how to create a ChatGPT GPT is:

https://help.openai.com/en/articles/8554397-creating-a-gpt


Many months ago, I created a ChatGPT GPT that could be shared via a link, even though the GPT was not listed in the store. The instructions on how to share a GPT still note this option.

HTH

Upper-right menu with your profile icon, then “my GPTs”. Or a direct link:

https://chatgpt.com/gpts/mine

It is an interface laid out best for a desktop user.

A GPT is simply an instruction box (with “create” tab giving you some compositional help). Then you can add files (that become OpenAI property), and at an advanced level, can incorporate external APIs.

Or maybe I have no reason why I’d make a GPT, so I need a GPT that will help people come up with uses for one…

Free users get limited GPT interactions before they are cut off with an “upgrade!” message.

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Hey thanks a lot to you both.
I got kind of lost with the various terminologies for it before this.

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