Pro subscribers reportedly can't access Gemini 4 Argon in Antigravity
kenrock2 · reddit · 2026-10-14
A user reports that despite holding a Pro subscription, Gemini 4 Argon shows as "Unavailable" in Google's Antigravity IDE model picker.
- Screenshot shows selectable models: Gemini 3.8 Flash High, Claude Opus 5.5 / Sonnet 5.5 (Medium), GPT-OSS 120B (Medium)
- Argon is greyed out with a notice, raising questions about subscription entitlements and model rollout
- Unclear whether it's a regional limit, staged rollout, or tier restriction
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