Google Releases Gemini 4 Carbon to Public
Google's new flagship model is now available through its API, Google AI Studio, and paid Gemini plans, with introductory pricing set below rival models.
Updated on Nov. 10, 2026 in Artificial Intelligence
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Google released Gemini 4 Carbon to the general public after first giving it to select cybersecurity defenders two weeks earlier. Google describes Carbon as its strongest model and says benchmarks place it among the most powerful models on the market, behind Anthropic's Fable 5.2.
Why it matters
Carbon is designed for tasks that test the limits of a model's intelligence, such as complex multi-step coding and open-ended scientific research. Its introductory pricing undercuts rival frontier models, which could shape how developers and enterprises choose among competing AI systems.
Google's introductory pricing for Carbon is $2 per million input tokens and $10 per million output tokens, roughly one fifth the cost of OpenAI's GPT-6 Astra and one quarter the cost of Anthropic's Fable 5.2. The source does not address Carbon's performance on independent evaluations beyond Google's own benchmark claims.
The players
Google is the American technology company that develops the Gemini model family, operates Google AI Studio and the Antigravity platform, and offers AI features across its Search and productivity products.
Anthropic
Anthropic is an AI safety and research company that develops the Claude family of large language models and competes directly with Google in the frontier model market.
OpenAI
OpenAI is the artificial intelligence research company behind the ChatGPT product and the GPT model series, and it is a leading rival to Google in frontier AI models.
The details
Carbon is available through the Gemini API in Google AI Studio and Gemini for business for all paying developers and enterprises, and to all Google AI Ultra subscribers in the Gemini app, AI Mode in Search, and Antigravity. Google is also previewing a swarm feature on Antigravity that turns a single prompt into a coordinated team of agents.
Timeline
Carbon was released to select cybersecurity defenders two weeks before its public release on November 10, 2026.
Anthropic launched its Fable 5.2 model on November 9, 2026, the day before Carbon's public release.
Google's Argon model launched in October 2026.
Introductory pricing for Carbon is scheduled to double at the end of November 2026.
Roadmap
Carbon sits above Google's Argon model, which launched in October 2026, as the company's strongest offering in the Gemini line. The source indicates Argon will likely remain the better fit for most software engineering and knowledge work, so Carbon is positioned for the narrower set of tasks that push the limits of model capability.
Developers and enterprises can access Carbon now through the Gemini API and Google AI Studio, with introductory per-token rates that are lower than comparable rival models. Those rates are set to double at the end of November, so budgeting for heavy usage may need to account for the higher later price.
The takeaway
Carbon's introductory pricing gives developers a window to test a top-tier model at a lower cost, but the price increase at the end of November means the long-term value depends on how the model performs for their specific workloads.
What happens next
Introductory pricing for Carbon is scheduled to end at the end of November 2026, when prices are set to double.
Further reading
For more on how these models are changing software development, see the Artificial Intelligence section.
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