OpenAI is greatly improving on its capabilities with GPT-4, compared to GPT-3, which powers your favorite ChatGPT AI chatbot, the latest GPT-4 model is multimodal.
As OpenAI's announcement page for GPT-4 makes clear, GPT-4 is the model being used by ChatGPT, but only if you're a premium member with access to ChatGPT+.
First, head to the ChatGPT website using the link here and log into your existing account. Make a new account if you don’t already have one.
Once logged in, you will see the “Upgrade to Plus” option in the bottom left corner. Click on it.
Next, in the pop-up that opens, click the green “Upgrade plan” button under ChatGPT Plus. As mentioned here, ChatGPT gets you priority access to new features, and rightfully so, with GPT-4.
On the next page, you need to enter your payment details and billing address in the right pane. Once you have entered the details, click the “Subscribe” button.
After your payment is complete, you will successfully become a ChatGPT+ subscriber. You can now use the new GPT-4 model and other older AI models with ease. From the drop-down menu on your screen, select “GPT-4” to get started.