Google Will Double Gemini 4 Carbon API Prices Starting Dec. 1

Google will double paid API rates for Gemini 4 Carbon on Dec. 1, ending introductory pricing and raising costs for developers using the model through its API.

Input pricing will increase from $2 to $4 per million tokens. Output pricing will rise from $10 to $20 per million tokens. The introductory rates remain in effect through Nov. 30.

The schedule applies to Carbon’s paid API offering, which Google expanded to developers and enterprise customers after initially making the model available to some cybersecurity defenders through Fairwind. Developers can access the model through Google AI Studio’s Gemini API, while enterprise customers can use Google’s business offering. The global rollout of Carbon API access expanded availability beyond the initial group.

The introductory rates match Gemini 4 Argon’s prices. The current rates end Nov. 30, with the higher prices taking effect the next day.