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Gemini 4 Argon

Google's frontier Gemini model, in the Gemini API, the Gemini app, and Google Antigravity.

Google released Gemini 4 Argon on October 13, 2026. It is available via the Gemini API in AI Studio and the Gemini platform, in the Gemini app and AI Mode in Search for Google AI Ultra and Pro subscribers, and in Google Antigravity (desktop app and CLI) for Google AI Pro and Ultra subscribers and eligible Gemini Enterprise subscriptions. Google staff on the Google AI Developers Forum said on October 15, 2026 that Pro users get a separate weekly-only Argon quota in Antigravity, and that Gemini 3.1 Pro was retired from Antigravity. The Gemini API limit is 1 million unified input and output tokens. The introductory API price is $2 per 1 million input tokens and $10 per 1 million output tokens, with cached input 95% off, until November 30, 2026. After that, the price is $4 per 1 million input tokens and $20 per 1 million output tokens. Newer, October 28, 2026: Gemini 4 Carbon is not open to developers yet.

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Introductory API price until November 30, 2026: $2 per 1 million input tokens and $10 per 1 million output tokens, with cached input 95% off. After that: $4 input and $20 output per 1 million tokens. Gemini app and AI Mode access is for Google AI Ultra and Pro subscribers. Antigravity access is for Google AI Pro and Ultra subscribers and eligible Gemini Enterprise subscriptions.

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Added October 27, 2026

Last verified October 29, 2026

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