Google opens Gemini 4 Carbon to all paying developers, starting at 2 dollars

Google opened Gemini 4 Carbon to every paying developer today. Access had been limited to cybersecurity defenders in the Fairwind Program. The model is now in Google AI Studio and the Gemini API for anyone on a paid plan.

Google set an introductory price through 30 November. Input is 2 dollars per million tokens. Output is 10 dollars per million tokens. The standard rate kicks in after that. It is 4 dollars per million input tokens and 20 dollars per million output tokens. The post calls this the price for the paid API tier.

What the model is for

Google says Carbon is its strongest model for cybersecurity work and long-running agent workflows. The post names four focus areas. These are finding and patching software vulnerabilities, multi-step coding, scientific research, and document and financial analysis. Google lists physics, mathematics and life sciences as the branches it reads on the science side.

The benchmark line

Google says Carbon ranks first on CursorBench 4.0, Perplexity's WANDR and Zapier's AutomationBench. Google says the cost per task is less than half the next best outside model. Those are Google's own figures. The Fairwind launch two weeks ago gave its own cybersecurity benchmark numbers. The general availability post focuses on code and agent work. No independent benchmark has posted a result for Carbon on these three boards today. Artificial Analysis ranked Carbon first on its Intelligence Index on 30 October, which was before this general release.

Where to reach it

The model is live in Google AI Studio and the Gemini API for paid developers. It is in Gemini for Business for enterprises. It is in Google Antigravity for AI Ultra subscribers. It is in the Gemini app and Search AI Mode for AI Ultra subscribers. The Fairwind Program keeps its separate access for cybersecurity defenders. That program opened to defenders two weeks before general release.

What changed today

The 27 October launch was a limited release aimed at cybersecurity defenders. It carried no API price. Today's post sets the number and opens access to anyone on a paid plan. That is a product change, not a repeat of the earlier post.

A team pricing out a Q1 budget now has a real number. Before today the model needed Fairwind approval and the price was not set. The introductory rate runs for twenty days. A workload that starts under it keeps its own token history. That history is what every team needs when it compares the post-30-November rate. The price difference between the two rates is wide. The intro price is half the standard rate. It is the headroom a long agent run needs. Twenty days is also enough to run a small eval set. Score Carbon against the model in production today.

Source

• Gemini 4 Carbon is now available, Google