Free Google AI Pro users can still reach Gemini 4 Argon via AI Studio
Free Google AI Pro subscriptions from student offers, Jio bundles or Pixel promos don't get Argon in Antigravity, but the author says Gemini 4 Argon is still usable through Google AI Studio.

Got Google AI Pro for free through a student offer, Jio bundle, or Pixel phone offer? You can still use Gemini 4 Argon! Google treating free Google AI Pro subscriptions differently from subscriptions purchased directly, with Argon access in Antigravity not available to everyone. But there's another way: you can use Gemini 4 Argon in Google AI Studio, even if you got your Pro subscription for free. If you have access through one of these offers, give AI Studio a try!