
Antigravity Pro Users Lost Gemini 3.1 Pro, and Didn't Get Gemini 4 Argon
Google removed Gemini 3.1 Pro from Antigravity on Oct 13 and launched Gemini 4 Argon for Ultra only. Update: Argon reached Pro on Oct 15.

Google removed Gemini 3.1 Pro from Antigravity on Oct 13 and launched Gemini 4 Argon for Ultra only. Update: Argon reached Pro on Oct 15.

Antigravity 2.23.0 ships gemini-4-argon with Low, Medium and High variants and model picker labels, as Gemini 3.1 Pro and 3.6/3.7 Flash leave.

A gemini-3.1-ultra model string appeared in Antigravity CLI 1.3.1. We verified it in the binary, checked agy models and tried to run it.