According to Odaily Planet Daily, a mysterious AI chatbot named "gpt2-chatbot" suddenly appeared on the "LMSYS Chat" website, sparking heated discussions on the Internet. The website is dedicated to testing open large language models (LLMs). At present, the creator and specific information about this robot have not been made public, but there are two popular speculations: one is that it may be a secret early release version of OpenAI's highly anticipated GPT-5 for model benchmarking; the other is that it is a new version of OpenAI's 2019 GPT-2 after fine-tuning. OpenAI CEO Sam Altman posted this morning: "I do have a soft spot for gpt2," but he emphasized "gpt2" rather than "gpt-2."