Rumors swirl about mystery "gpt2-chatbot" that some think is GPT-5 in disguise
Briefly

Currently, the new model is only available for use through the Chatbot Arena website, although in a limited way. In the site's 'side-by-side' arena mode where users can purposely select the model, gpt2-chatbot has a rate limit of eight queries per day-dramatically limiting people's ability to test it in detail.
gpt2-chatbot has inspired rumors online as a potential test version of GPT-4.5, GPT-5, or a new version of GPT-2 with new training techniques. OpenAI's response to inquiries remains pending, prompting further speculation.
Early reports and hype about gpt2-chatbot's capabilities surfaced on platforms like X after initial mentions on 4chan. Developers noted its impressive reasoning abilities and accuracy in handling challenging AI questions, creating excitement in online communities.
Read at Ars Technica
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