Note that the free version of ChatGPT that most people use is based on GPT-3.5 which is much worse than GPT-4. I haven't found comprehensive eval numbers for the latest GPT-3.5, however I believe Llama 3 70B handily beats it and even the 8B is close. It's very exciting to have models this good that you can run locally and modify!
GPT-4 numbers from from https://github.com/openai/simple-evals gpt-4-turbo-2024-04-09 (chatgpt)