Rumors swirl as users claim Gemini 4 Pro is undergoing 'ghost testing' on Arena

Social media users are speculating that Google's unreleased Gemini 4 Pro is being tested anonymously on the LMSYS Chatbot Arena platform under the guise of 'Gemini 3.8 Flash.' Reports from various accounts suggest that this model exhibits superior 3D and physics reasoning capabilities, with some citing internal metadata like 'Argon-B02' as evidence. However, Google and Arena officials have not confirmed these claims, and experts note that model self-identification is often unreliable. While Google CEO Sundar Pichai previously confirmed that training for Gemini 4 is underway, no official release details or benchmarks have been provided.