Overall, the ChatGPT-4o image generator feels like an upgrade for several reasons. It is easy to use directly within the chat window, the chatbot pivots when prompted or given more information, and anyone can use it, even without an account and for free. That last point is a huge plus.

Because the image generator is accessible in ChatGPT, users can also refine images through a multi-turn conversation. This makes tweaking images easier and allows the model to use the context of previous generations to create new ones. Since GPT-4o has access to the web, that context is also added to creating the images.

OpenAI has rolled out a major AI image generation upgrade with the GPT-4o model. Here's what it can (and still can't) do.