Arena Reportedly Testing Gemini 4 Pro Under gemini-3.8-flash Codename
CodeByPoonam · x · 2026-09-27
A user reports that a model routed to them on LMArena under the name gemini-3.8-flash appears to actually be the rumored Gemini 4 Pro. A robotic-hummingbird prompt yielded quality comparable to Fable and clearly better than GPT-6 Sol. Unconfirmed, but consistent with the wave of leaks about a Gemini 4 Pro checkpoint being blind-tested on Arena.
Related event: Suspected Gemini 4 Pro Spotted in Anonymous Arena Testing(8 posts)→
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