What's The Difference between GPT-4, GPT-3.5, and ChatGPT?
First, it is important to understand that ChatGPT is just a chat interface that powers the OpenAI model GPT-3, and thus is called GPT3.5. The company OpenAI just rolled out ChatGPT for model 4.0, and hence you can now use ChatGPT to interact with the GPT-4 model.