Gemini 4 Argon appears in Antigravity with three reasoning levels and tiered context pricing
A leak says Argon has been added to Antigravity with only low, med and high reasoning levels, plus 256k, 512k (1.3x) and 900k (1.8x) context tiers priced separately.

Gemini 4 Argon added to Antigravity recently it has only three reasoning levels: low, med and high (not xhigh and max) the shocking part is, its coming with three context window options: - 256k - 512k is 1.3x more expensive - 900k is 1.8x fyi, OpenAI models (Astra, Sol and Luna) are 2x more expensive over a 272k ctx window(additional 2x for fast and 6x for ultrafast) anthropic also introduced tiered pricing with Haiku, 5x more expensive over 100k ctx remembering all of it is getting harder day by day😭
This post quotes another post: “Antigravity hidden references reveal Gemini 4 Argon reasoning tiers”