# GPT-4 Access

As you may know, accessing to the GPT-4 model on AIChatOne is not granted automatically. To use this model, you must first be given access to the GPT-4 API by OpenAI. Now it’s much easier to access GPT-4 via API, all you need is a prepaid billing account.Let’s check what it is and how to set it up!💡

> Please note that the GPT-4 access in ChatGPT Plus is completely different from the GPT-4 access via API - which is currently being used on AIChatOne.

## 4 steps to setup a Prepaid Billing account <a href="#id-98db6d74002d42fabdbccd6f226809b8" id="id-98db6d74002d42fabdbccd6f226809b8"></a>

Here are 4 easy steps to set it up:

1、Go to your [billing overview](https://platform.openai.com/account/billing) in your account settings

<figure><img src="https://image-forwarder.notaku.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" alt="Image without caption"><figcaption></figcaption></figure>

2、Click "Start payment plan" and add your billing details

<figure><img src="https://image-forwarder.notaku.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" alt="Image without caption"><figcaption></figcaption></figure>

<figure><img src="https://image-forwarder.notaku.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" alt="Image without caption"><figcaption></figcaption></figure>

3、Choose the initial amount of credits you want to purchase. The minimum purchase is $5.

<figure><img src="/files/xviwffeUMWCN0QSvRVca" alt=""><figcaption></figcaption></figure>

4、Confirm and purchase your initial amount of credits.

<figure><img src="/files/o4k3ffWnFkq9kz971haM" alt=""><figcaption></figcaption></figure>

Once you have done purchasing credits, OpenAI will grant you access to the GPT-4 API immediately.You can also check out this article from OpenAI for more details of [prepaid billing](https://help.openai.com/en/articles/8264644-what-is-prepaid-billing).

## Use GPT-4 on AIChatOne <a href="#id-48258ff52ea34f5db9be4a52086ece7a" id="id-48258ff52ea34f5db9be4a52086ece7a"></a>

You can then copy your [API key](https://platform.openai.com/account/api-keys) and input it to AIChatOne:

After that, switch the chat model to GPT-4 and interact with this model as normal:

> 💡The GPT-4-32K API isn’t available for everyone yet. In case you want to use this model, you can use it via [OpenRouter](https://docs.typingmind.com/other-resources/how-tos/how-to-use-open-router-models-on-typing-mind).Hope this article has provided you with a clear understanding of how to access GPT-4 on AIChatOne. Now let’s explore its capabilities in optimizing your workflow!


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.aichatone.com/product-guides/chat-models-settings/gpt-4-access.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.