Technology

Google Expands Access to Gemini 4 Carbon Artificial Intelligence Model

The software rollout gives developers and subscribers broader access to advanced coding tools ahead of a planned price increase in December.

By Headlinne · Compiled from reporting by TechCrunch, Hacker, Hacker and 3 others

Google released its Gemini 4 Carbon artificial intelligence model to developers and consumers on Tuesday, expanding access two weeks after rolling it out to select cybersecurity partners.

The new model is available through the company's application programming interface, the Gemini application for AI Ultra subscribers, and its AI Mode in Search.

Google priced Carbon at an introductory rate of $2 per million input tokens and $10 per million output tokens through November 30.

Prices will double to $4 per million input tokens and $20 per million output tokens after November, according to 9to5Google.

Gemini 4 Carbon rolling out to Gemini app for AI Ultra, Argon remains
Image: 9to5Google

Google said the previous Argon model remains "the ideal choice for the majority of software engineering and knowledge work."

The company said Carbon is instead "built for tasks that test the limits of a model's intelligence" such as multi-step coding and scientific research.

Alongside the model release, Google introduced a preview feature called swarm on its Antigravity platform to manage groups of artificial intelligence agents.

The swarm tool turns a "single prompt into a coordinated team of agents you can track in real time," Google said in a blog post.

Carbon ranked at the top of several industry benchmarks, including CursorBench 4.0 and Zapier's AutomationBench, while achieving low cost per task.

The accounts differed regarding Carbon's performance on the Multimodal Knowledge Agent benchmark co-launched with Artificial Analysis.

Gemini 4 Carbon is now available
Image: Hacker News

Google reported that Carbon ranked second on the benchmark, while 9to5Google reported that the model ranked first while using three times fewer tokens than competitors.

On security evaluations, Carbon recorded a zero percent success rate for prompt-injection attacks on the Gray Swan benchmark, CNET reported.

With the deployment of Carbon, Google removed the 3.1 Pro model option from the Gemini application, according to 9to5Google.

The company did not specify whether Carbon will eventually become available to free users or subscribers on lower-tier plans.

Reporting from

  1. TechCrunchNot politically framed

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  2. Hacker NewsNot politically framed

    Google Gemini routes personal Drive files and emails to human annotators

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  3. Hacker NewsNot politically framed

    Gemini 4 Carbon is now available

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  4. 9to5Google

    Gemini 4 Carbon rolling out to Gemini app for AI Ultra, Argon remains

    Read on headlinne.com →

  5. The VergeNot politically framed

    Google releases Gemini 4 Carbon with agent ‘swarm’ feature

    Read on headlinne.com →

  6. CNETNot politically framed

    Google Expands Gemini 4 Carbon Availability

    Read on headlinne.com →

How this article was made: Headlinne wrote it with AI from the 6 reports listed above. Direct quotes are checked word for word against those reports, every number appears in at least one of them, and no other sentence is copied from one. Photos are from those reports and credited to them. Each report’s page on Headlinne links to the outlet’s original.