Free account users will notice the biggest change as GPT-4o is not only better than the 3.5 model previously available in ChatGPT but also a boost on GPT-4 itself. Users will also now be able to run code snippets, analyze images and text files and use custom GPT chatbots.
On mobile, you still have access to ChatGPT Voice, but it is the version that was launched last year. The way to tell is to have a conversation, end it, and see if it has transcribed everything to chat — that will be the older model. The new model doesn’t need this step as it understands speech, emotion and human interaction natively without turning it into text first.
1. Sign in to ChatGPT
Whether you use the paid or free version of ChatGPT the first thing to do is sign in. Visit the website or download the app and connect to your account. If you don’t have one then simply sign up.
2. Download the ChatGPT macOS app (if you want)
OpenAI has confirmed that the macOS app is being rolled out right now to a limited set of users, with broader access coming in the “next few weeks.” If you get this notification when on the browser version of chatGPT, click download to get the app!
3. Check your model choices
There will be a drop-down menu near the top of the screen. This will have a list of models. On the website, it may already say GPT-4o selected. But could also have GPT-4 or GPT-3.5. If GPT-4o doesn’t appear then you don’t have access to the model yet.
On mobile, it will say ChatGPT 4o in the middle of the navigation bar at the top of the screen if you have access.
4. Start chatting
If you do have access then simply start chatting with GPT-4o in the same way you would with GPT-4. There are rate limits imposed and these are much lower on the free plan. This means you’ll only be able to send a set number per day. If this runs out you can continue the conversation with GPT-4 or GPT-3.5.
5. Change the model in a chat
You can also change the AI model you’re using midway through a chat. For example, if you want to manage how many messages you send using GPT-4o you could start the chat with GPT-3.5, then select the sparkle icon at the end of the response.
This opens a model menu and if you select GPT-4o, which might be necessary for a more complex math query, you will have the next response sent using GPT-4o.
6. Upload files
If you have GPT-4o and are on the free plan you’ll now be able to send it files to analyze. These could be images, video or even PDFs. You can then ask it any questions about the content.
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