Mystery Model gemini-3.8-flash Spotted on Arena, Suspected to Be Gemini 4 Pro
jasonkneen · x · 2026-09-26
An anonymous model codenamed gemini-3.8-flash appeared on Arena, suspected to be Gemini 4 Pro in testing. Asked to build a photorealistic exploration airship with three.js, it delivered in under 10 minutes—though jasonkneen quipped the result wasn't actually photorealistic. Unverified model-testing rumor plus demo.
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