Gemini 4 Argon begins rolling out in Gemini app and Antigravity, but only if you pay
Summary
Ars Technica reports that Gemini 4 Argon is rolling out in the Gemini app and Antigravity, but access is limited to paid plans. The model retains its advanced reasoning and coding capabilities, with internal use cases cited (YouTube comments, drone physics simulation, robotics) and gating by AI Pro/Ultra tiers. Developers can access Argon via paid API tokens with introductory pricing through November, after which prices rise, and some features remain restricted to higher tiers.