Gemini 4 Carbon, Google’s strongest model yet, is now available to paying developers and enterprises through the Gemini API and to Google AI Ultra subscribers in the Gemini app, with an introductory API price of $2 per million input tokens and $10 per million output tokens until 30 November 2026.
Gemini 4 Carbon price and access
- API price: $2 per million input tokens and $10 per million output tokens during the introductory period, the same as Gemini 4 Argon. After 30 November 2026 the price becomes $4 and $20 (US dollars, as of 10 November 2026; Google gives no rupee price).
- Developers can use the paid tier of the Gemini API in Google AI Studio and Android Studio. Enterprises can use Gemini for business.
- Everyday users need Google AI Ultra to get Carbon in the Gemini app, AI Mode in Search and Google Antigravity. Google does not name countries or an Indian Ultra price.
- Scientists can apply for free Antigravity access for six months.
What Gemini 4 Carbon is built for
- Google positions Carbon for long, multi-step work such as complex coding and debugging, scientific research and heavy knowledge work. It uses more tokens than Gemini 4 Argon, which Google still recommends for most software and knowledge tasks.
- Google says Carbon ranks first on CursorBench 4.0, Perplexity’s WANDR and Zapier’s AutomationBench at more than 2x lower cost per task than the next best external model, and second on the new Multimodal Knowledge Agent benchmark.
What to check before using Gemini 4 Carbon
- Budget for $4 and $20 per million tokens once the introductory period ends on 30 November, not the launch rate.
- Judge cost per finished task, not per token, because Carbon spends more tokens than Argon.
- Benchmark results and customer quotes come from Google and its partners, so test on your own workload.
- Google names paying developers and enterprises, so free-tier Gemini API users should not assume access.
What this means for you: Indian developers and startups on the paid Gemini API can trial Carbon this month at half the price it will cost afterwards. Everyone else can keep using Argon unless a task keeps failing on it.
Gemini 4 Carbon FAQ
How much does Gemini 4 Carbon cost?
The API price is $2 per million input tokens and $10 per million output tokens until 30 November 2026, then $4 and $20.
Who can use Gemini 4 Carbon?
Paying developers and enterprises can use it through the API, and Google AI Ultra subscribers can use it in the Gemini app, AI Mode in Search and Antigravity.
Is Gemini 4 Carbon better than Gemini 4 Argon?
Google calls Carbon its strongest model for the hardest multi-step tasks but says it uses more tokens, and it still recommends Argon for most everyday software and knowledge work.
Sources
Related: GPT-6 Cyber: OpenAI’s New Security Model Explained
Last updated: 11 November 2026
