Google: Gemini 4 Carbon Is Now Available, Its Strongest Model

Context

Google posted that Gemini 4 Carbon is now available and called it the company's strongest model. CEO Sundar Pichai posted at the same time that the model is rolling out today through the Gemini API, Gemini for business, and Ultra plans. Google said Argon is great for complex tasks and that Carbon is the model to bring in for the hardest problems.

Deep dive

Google's company account said Gemini 4 Carbon is now available and called it the company's strongest model. The post says it is built to dig deeper, handle long horizon tasks, and multi step reasoning. Google compared it with Gemini 4 Argon, saying Argon is great for complex tasks and Carbon is the model to bring in for the hardest problems.

Sundar Pichai, Google's CEO, posted at the same time that Gemini 4 Carbon is rolling out today. He said it is built for sustained, long horizon tasks and for reasoning deeply through complex software engineering, cybersecurity, and scientific discovery. According to Pichai, the model is coming globally through the Gemini API in Google AI Studio and Gemini for business, and to Ultra subscribers in Antigravity, the Gemini app, and AI Mode in Search.

Google attached a video to its announcement. Neither post shared benchmark scores or pricing. Pichai's post is the most specific on where Carbon is available on day one.

What to expect next

Watch for independent benchmark results, whether Carbon reaches more Gemini plans beyond Ultra, and how testers compare it with Claude Fable 5.2 and other frontier models on long horizon work. Google did not give a date for a wider rollout past the Ultra, API, and business access named in Pichai's post.