Rumors swirl about mystery "gpt2-chatbot" that some think is GPT-5 in disguiseSpeculation surrounds new mystery chatbot gpt2-chatbot in LMSYS Chatbot Arena, possibly hinting at GPT-4.5 or GPT-5 launch by OpenAI.
Anthropic's Claude 3.5 Sonnet surges to top of AI rankings, challenging industry giantsAnthropic's Claude 3.5 Sonnet secures top spots in LMSYS Chatbot Arena categories shortly after release.