Google launches Gemini 4 Carbon for top-tier subscribers

Google has released Gemini 4 Carbon, its newest frontier AI model, available immediately to Google AI Ultra subscribers and paid Gemini API users. The company claims the model delivers state-of-the-art cybersecurity and long-horizon capabilities, succeeding Gemini 4 Argon just weeks after its launch. Gemini 4 Carbon is accessible across AI Studio, the Gemini API, Antigravity, the Gemini app, and AI Mode in Search. Google CEO Sundar Pichai highlighted its strength in complex software engineering, cybersecurity, and scientific discovery. In India, the Google AI Ultra plans cost ₹6,500 and ₹19,500 per month. The model was initially tested with cybersecurity experts and is now expanding through Google's Fairwind Program with 650 partners. Benchmarks show Gemini 4 Carbon leading in several categories, including a 96.2% score on the GraphWalks long-context test and top placement on the Artificial Intelligence Index 50. However, Anthropic released its Fable 5.2 and Mythos 5.2 models on the same day, which the company claims lead most benchmarks. Introductory pricing is set at $2 per million input tokens and $10 per million output tokens, with planned increases to $4 and $20 respectively.