Unable to find API key for GPT4 to make chatbot

I’m not an expert in technology but I am trying my best to find an API key for GPT4 to make my own chatbot. (I did it with 3.5 but now I have an invitation so I want to change the API to upgrade!)

but I can’t find it anywhere or I feel like I am misunderstanding something here…??
When it comes to creating a new chatbot by using the API key, where can I find the GPT4’s API secret code??
(or does the API key automatically update to GPT4 even tho it doesn’t look like it??? I have an invitation + paying $20 so I want to make my own to have a customized one rather than a $20 general one)

Yes, I got an invitation and am able to use the playground but I would like to make my own so that I can teach GPT abt my personal company’s info to build a strategy or have a smoother conversation.

I pay $20 and also have an invitation, is it not enough?? :sob:

It’s here: OpenAI API

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Just click Create Secret Key and copy the code

Hi there,

Here’s an example using Dart code to make a request to the OpenAI API. I’ve removed sensitive data like the API key and shortened it for better readability:

import 'dart:convert';
import 'package:http/http.dart' as http;

class GPT3Service {
  static const String apiKey = 'your_api_key_here';
  static const String apiUrl = 'https://api.openai.com/v1/chat/completions';

  Future<String> generateResponse(String input, String character) async {
    final headers = {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer $apiKey',

    String gpt3RequestContent = 'your_request_content_here';
    gpt3RequestContent = gpt3RequestContent.replaceAll('\$character', character);

    final body = jsonEncode({
      'model': 'gpt-3.5-turbo', // Replace this with the GPT-4 model name
      'temperature': 0.7, // Adjust this value to control creativity
      'max_tokens': 200, // Slightly increase the value for more room
      'messages': [
        {'role': 'system', 'content': gpt3RequestContent},
        {'role': 'user', 'content': input},

    final response = await http.post(
      headers: headers,
      body: body,

    // Handle the response here

To use GPT-4, simply replace 'model': 'gpt-3.5-turbo' with the GPT-4 model name, like 'model': 'gpt-4-model-name'. Remember to replace 'your_api_key_here' with your actual API key and 'your_request_content_here' with the appropriate content for your use case.

I hope this helps! Let me know if you have any other questions or need further clarification. Happy coding!

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Hi @erics
Thank you so muchhhh for ur reply.
Is that simple?!

Whenever people make API key, whether you are invited to use GPT-4 API Key or not,
it just look the same so I get very confused.

So it seems like I just need to create any API key and apply it it on my own chatbot,
but like smart kind @jorisvillaseque told me, I have to write this code and run it on my chatbot and I will be able to use it once I replace the ‘model’: ‘gpt-3.5-turbo’ to GPT-4 ver.

I thought API key automatically use whatever the highest level but it makes sense now!!
I am new to coding but I will try to add what you guys taught me and find a way to add this beautiful readable Dart code to mine!!!

Thank uuuuuu

1 Like

Yes, they provide you API keys. You can create as many as you want.

Careful because the $ add up with GPT4. You can set “usage limit” so you won’t accidentally spend too much.

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