Antigravity UI reveals Gemini 4 Argon gated to Ultra and paid Pro plans

Different_Change6591 · reddit · 2026-10-16

A Reddit user spotted "Gemini 4 Argon" in Google Antigravity's model switcher, marked unavailable: "currently available to Ultra and paid Pro plan subscribers." The current default is Gemini 3.8 Flash, with Claude Sonnet 4.6 (Thinking), Claude Opus 4.6 (Thinking) and GPT-OSS 120B (Medium) also listed. This is an unconfirmed but plausible signal that Gemini 4 Argon exists and will sit behind Google's top subscription tiers.

Related event: Screenshots Reveal Unreleased Gemini 4 Argon in Google Tools, Limited to Ultra and Paid Pro Users(4 posts)→

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