Leak: Gemini 4 Pro spotted in Arena testing, reportedly beats Astra

Mehdi @MehdiCadeOriginally posted 2026.09.23

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🚨 GEMINI 4 PRO LEAKS: beats Astra. >A new Gemini 4 Pro checkpoint reportedly spotted in Arena testing >Currently disguised under the "Gemini 3.8 Flash" label >Could reportedly hit Mythos-level performance >Google's recent RSI progress may be playing a role >Expected to go head-to-head with GPT-6 Astra >Launch could finally land in October Could Gemini 4 Pro actually rival Mythos?

This post quotes another post: “Leak claims Gemini 4 Pro shows big gains in 3D, SVG and frontend coding”