Antigravity hidden references reveal Gemini 4 Argon reasoning tiers
TestingCatalog found hidden low, medium and high reasoning tiers for Gemini 4 Argon in Antigravity, while Gemini web now shows the same tiers for all models; the post also cites a Business Insider report on an internal checkpoint called Carbon said to match Opus 5.5 on coding.
GOOGLE 🔥: New references to the Gemini 4 Argon model, with low, medium, and high reasoning efforts, have been added recently in Antigravity (hidden). > Gemini web now also shows low, medium, and high reasoning efforts for all models, unifying the reasoning selector across tools. > Business Insider recently reported that Google employees are already testing the next Gemini 4 checkpoint, called "Carbon," internally, and it performs at the Opus 5.5 level on coding tasks. > The internal coding tool "Jetsky" referenced in the article is also an internal name for Antigravity (not the IDE version). Ultrasoon?
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