ChatGPT is an AI language model designed to engage in conversation and answer a wide range of questions, whereas the GPT-3 playground is a web-based platform for developers to build and test applications using OpenAI's GPT-3 API.
By subscribing to ChatGPT Premium, you can access additional features and benefits, such as ad-free chatting, priority access to the service, longer conversation sessions, and customized responses. Additionally, with ChatGPT Premium, you can support the ongoing development and maintenance of the platform.
If you are a developer looking to build and test applications using GPT-3, then the GPT-3 playground is the best option. However, if you are looking to engage in conversational AI, ChatGPT is a great choice, and ChatGPT Premium can provide additional benefits and features.