# 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="https://3481753452-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzYU2cjsYvY3seDzkySsN%2Fuploads%2FJjhBU0mngzlxvtiWqrx8%2Fimage.png?alt=media&#x26;token=102a505b-c6ce-4d81-b97f-caa970558144" alt=""><figcaption></figcaption></figure>

4、Confirm and purchase your initial amount of credits.

<figure><img src="https://3481753452-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzYU2cjsYvY3seDzkySsN%2Fuploads%2FMiWbB1RJRSy3z8lpas86%2Fimage.png?alt=media&#x26;token=3f43e05a-6e96-4339-9352-2e839f5dd10a" 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!