Gemini 4 Argon begins rolling out in Gemini app and Antigravity, but only if you pay
Developers will get 50 percent discounted API rates through November.

TL;DR
- Gemini 4 Argon is rolling out to paying users on AI Pro and AI Ultra plans.
- The model features advanced reasoning and agentic coding capabilities.
- Internal Google use cases include optimizing YouTube's comment system and finding bugs in Project Wing.
- Argon is noted to be better at solving spatial problems in 3D environments.
- Access to coding-focused products like Antigravity and AI Studio with Argon requires the AI Ultra plan.
- Developers can access Argon via a paid API with tiered pricing, with introductory discounts lasting until November 30th.