Google made Gemini 4 Carbon, its most capable frontier AI model, generally available on 10 November 2026 to paying developers, enterprises and Google AI Ultra subscribers. The model costs $2 per million input tokens and $10 per million output tokens until 30 November, after which the price doubles to $4 and $20, Google DeepMind said.

The wider release comes two weeks after Google first handed the model only to vetted security teams, a step Elets CIO covered when Gemini 4 Carbon went to cyber defenders first. The general launch was announced in a blog post by Koray Kavukcuoglu, Senior Vice President at Google DeepMind and Chief AI Architect at Google.

Who can use Gemini 4 Carbon now

Access is limited to paid tiers for most users.

• Developers: the Gemini API paid tier in Google AI Studio and Android Studio.
• Enterprises: Gemini for business through the API or model menu, the Google Antigravity agentic coding tool and CodeMender.
• Consumers: the Gemini app and AI Mode in Search, for Google AI Ultra subscribers only. In India, Ultra plans cost ₹6,500 or ₹19,500 a month depending on the tier.
• Scientists: six months of free access through Google’s research programme.
• Security teams: a cyber-tuned version through the Fairwind Program, which counts partners such as Accenture, CrowdStrike, Snowflake and Wiz.

What Carbon does differently from Argon

Google positions Gemini 4 Argon as the everyday model for most coding and knowledge work. Carbon is meant for the hardest jobs, such as multi-step debugging, large code migrations and open-ended research, and it spends more tokens checking its own work.

The company says Carbon ranks first on CursorBench 4.0, Perplexity’s WANDR and Zapier’s AutomationBench, at less than half the cost per task of the next best external model. These are vendor-reported results. Google is also previewing /swarm in Antigravity, which turns one prompt into a coordinated team of AI agents, with Carbon handling design and review while lighter models do parallel work.

Pricing in a crowded frontier market

The launch lands in the same week that Anthropic released Claude Fable 5.2 and Mythos 5.2, priced at $8 per million input tokens and $40 per million output tokens. Even after its introductory period ends, Carbon will cost half as much per token.

For Indian technology leaders, that gap matters. Global capability centres and IT services firms now run coding and testing agents at scale, and token bills have become a real budget line. Cheaper frontier access also puts pressure on local options such as E2E Networks’ Blaze pay-per-token inference service, which serves open models from Indian data centres.

Safety claims and cyber risk

Because Carbon is strong at finding and exploiting software flaws, Google says it has tightened misuse safeguards. In simulated attack tests, the model blocked 99% of attack attempts by an adaptive red-teaming agent, and the per-attempt breach rate fell to 0.8% from 3.1% on Argon.

The cyber race between AI labs is speeding up, with OpenAI rating GPT-6 Cyber as critical for cybersecurity earlier this month. India is weighing its own response, including pre-release safety checks for frontier AI models under a proposed AI law.

Google has published full details in Google’s Gemini 4 Carbon announcement. Indian subscription prices are listed on the Google AI plans page for India.

Key takeaways

• Gemini 4 Carbon became generally available on 10 November 2026 for paid API users, enterprises and Google AI Ultra subscribers.
• Introductory pricing of $2 and $10 per million input and output tokens runs to 30 November 2026, then rises to $4 and $20.
• Google is pitching Carbon for long, multi-step agentic work and previewing /swarm multi-agent mode in Antigravity.

FAQ

Is Gemini 4 Carbon free to use in India?

No. In the Gemini app it needs a Google AI Ultra plan, priced at ₹6,500 or ₹19,500 a month in India, while developers pay per token through the Gemini API paid tier.

How much does the Gemini 4 Carbon API cost?

It costs $2 per million input tokens and $10 per million output tokens until 30 November 2026, and $4 and $20 from 1 December 2026.

Featured image: Gemini 4 Carbon key art. Image: Google (official press image from the Google blog)

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