
Gemini 4 Argon reaches paying users first, with agentic coding in Antigravity limited to Ultra
Ars Technica reports Gemini 4 Argon’s wide rollout is limited to paid tiers: AI Pro and Ultra get it in the Gemini app, but multi-threaded agent workflows in Antigravity and AI Studio require Ultra. API pricing is $2/$10 per million tokens through November 30, then $4/$20.










