Comment by sigmoid10

I use gpt4-o mostly, but your specific use-case might have a big impact here: 4o is very likely a distilled model, meaning that it has fewer weights and can thus run much faster on the same hardware. If that is the case, it's general world knowledge must be less comprehensive by default. But it retained the strong reasoning capabilities of 4 through distillation and drastically improved on external tool use and vision. It also offers a much bigger context window. So if you're using it to automate complex tasks in your job that depend a lot on additional information that it hasn't seen during training, 4o is the obvious choice. If you're just using it as a search engine, you should probably stick with 4 for now.