Gemini 4 Pro reportedly testing on Arena under the alias "Gemini 3.8 Flash"

DaniDFdesign · reddit · 2026-09-28

A Reddit post compiles LMArena observations suggesting a model codenamed "Gemini 3.8 Flash" may actually be a hidden test of Gemini 4 Pro.

The poster separates confirmed facts from speculation, noting the naming-to-model mapping is unverified and Google has made no official statement.

Related event: Mysterious 'Gemini 3.8 Flash' Spotted Testing on LMArena(2 posts)→

Original post →

More from Models

Models channel →