Google says Carbon is available "at the same introductory price as Gemini 4 Argon ($2 per million input tokens and $10 per million output tokens)". Its footnote says: "After the introductory period expires on November 30, 2026, the price of $4 per 1M input tokens and $20 per 1M output tokens will apply. Applies to the Carbon model intended for public access only."

The exact words it rests on

at the same introductory price 1 as Gemini 4 Argon ($2 per million input tokens and $10 per million output tokens) ... After the introductory period expires on November 30, 2026, the price of $4 per 1M input tokens and $20 per 1M output tokens will apply. Applies to the Carbon model intended for public access only.

What the source said when we opened it, on 12 Nov 2026.

The source

Gemini 4 Carbon is now available (10 Nov 2026)
Google DeepMind · 2026-11-10

Open the sourcearchived copy

Checked

Checked by the notis newsroom on 12 Nov 2026, against the source above.

In the story

Gemini 4 Carbon, which Google built for hard tasks, opens to paying developers 12 Nov 2026