Based on the provided web search results, there are two different subjects with the name “ChatGPT.” Here are the details for each subject:
Subject 1: ChatGPT Feedback Tool ChatGPT is a feedback tool developed by OpenAI [[https://openai.com/blog/chatgpt/]].
It is a sibling model to InstructGPT, which is trained to follow an instruction in a prompt and provide a detailed response.
ChatGPT, on the other hand, is designed to gather user feedback and learn about its strengths and weaknesses. During the research preview, usage of ChatGPT is free,
and it can be accessed at chat.openai.com [[https://openai.com/blog/chatgpt/]] or chatgpt.se [[http://chatgpt.se/]].
Subject 2: ChatGPT Chatbot ChatGPT is also a chatbot developed by OpenAI and launched in November 2022 [[https://en.wikipedia.org/wiki/ChatGPT]].
It is built on top of OpenAI’s GPT-3 family of large language models and has been fine-tuned using both supervised and reinforcement learning techniques.
The ChatGPT chatbot prototype was launched on November 30, 2022, and quickly garnered attention for its impressive capabilities [[https://en.wikipedia.org/wiki/ChatGPT]].
However, it is important to note that this chatbot is a relatively new development and may not be widely available or fully functional at this time.
In summary, “ChatGPT” can refer to either a feedback tool or a chatbot developed by OpenAI. The feedback tool is currently available for free usage at chat.openai.com or chatgpt.se,
while the chatbot is a newly developed prototype and may not be widely accessible or fully functional at this time.