Gemini Argon may be in stealth testing under the 3.8 Flash name
A user says 3.8 Flash in Antigravity performs unusually well and may actually be Gemini 4 Argon, while Polymarket prices a release today at 90%.

Is Google secretly testing Gemini Argon under the 3.8 Flash name? One of the lead Gemini devs just posted something mentioning Gemini Usually, hints like this from people at that level mean an update could be coming But here's the interesting part: For several days, users have been reporting a much more powerful model hiding under the Gemini 3.8 Flash name in Antigravity Others are seeing TWO versions of 3.8 Flash in the mobile app And some users have already tested it, claiming this model can solve tasks that Claude and GPT can't Wait, what? A model that's supposed to be worse than Fable and Astra is suddenly solving tasks they can't handle? Meanwhile, Polymarket traders are pricing the chance of a release TODAY at 90% What if this isn't actually Gemini 3.8 Flash? Gemini 4.0 Argon TODAY?
This post quotes another post: “Polymarket's Gemini Argon market trades on GPT-generated screenshots, one user says”