Gemini 4 Argon (gemini-4-argon) is now available in the creative authoring picker alongside Gemini 3.1 Pro and Gemini 3.8 Flash. It is not a default; pick it where you want deeper reasoning and complex authoring.
Gemini 4 Argon
- Google's flagship model for deep reasoning, complex authoring, and multimodal work.
- Priced at $2 / 1M input tokens and $10 / 1M output tokens, with cached input at $0.10 / 1M tokens, through 30 Nov 2026. From 1 Dec 2026 the rates double to $4 / $20, with cached input at $0.20.
- Thinking tokens bill at the output rate.
Gemini 3.1 Pro and Gemini 3.8 Flash remain available, and the defaults are unchanged.