# Gemini 4 Carbon is now available: API at $2/$10 until Nov 30, plus /swarm in Antigravity

Canonical: https://theagenticweekly.com/news/google-deepmind-gemini-4-carbon-is-now-available · Evidence: Reported · First seen: 2026-11-10 16:04 UTC · Source published: 2026-11-10 16:03 UTC · Brief published: 2026-11-10 16:06 UTC · Updated: 2026-11-10 16:06 UTC · Author: Agentic Weekly

> On Nov 10, 2026 Google DeepMind made Gemini 4 Carbon, which it calls "our strongest model", available via the Gemini API to all paying developers and enterprises at an introductory $2 per 1M input and $10 per 1M output tokens. Google says that price ends Nov 30, 2026, after which $4 and $20 apply.

Models in this brief: [Gemini 4 Carbon](https://theagenticweekly.com/models/gemini-4-carbon), [Gemini 4 Argon](https://theagenticweekly.com/models/gemini-4-argon)

## What changed

- Access widened: two weeks after a Fairwind Program release to cyber defenders, Google says Carbon is now available via the API in Google AI Studio and Gemini for business for all paying developers and enterprises.
- Price: the introductory rate matches Gemini 4 Argon at $2 per 1M input and $10 per 1M output tokens; Google says $4 and $20 apply after the introductory period expires on November 30, 2026.
- Consumers: Google says Carbon is rolling out to all Google AI Ultra subscribers in Google Antigravity, the Gemini app and AI Mode in Search.
- New tool: Google is previewing /swarm in Google Antigravity, which turns one prompt into a coordinated team of agents, with Carbon assigned to design, coordination and auditing roles alongside lighter models.
- Google's own claims: #1 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 92% on a 375-task agentic honesty benchmark versus 70% for Argon.
- Positioning: Google says Argon remains the ideal choice for most software engineering and knowledge work, while Carbon uses more tokens for complex multi-step coding, debugging and open-ended research.

## In the source's words

> "Carbon is our strongest model with frontier performance in cybersecurity capabilities and long-horizon agentic workflows across complex knowledge work, software engineering, and scientific reasoning."
> (Google DeepMind, availability post, https://deepmind.google/blog/gemini-4-carbon-is-now-available/)

> "After the introductory period expires on November 30, 2026, the price of $4 per 1M input tokens and $20 per 1M output tokens will apply."
> (Google DeepMind, availability post, https://deepmind.google/blog/gemini-4-carbon-is-now-available/)

> "Argon remains the ideal choice for the majority of software engineering and knowledge work"
> (Google DeepMind, availability post, https://deepmind.google/blog/gemini-4-carbon-is-now-available/)

## What we have not verified

- We did not run Gemini 4 Carbon or the /swarm preview ourselves.
- All benchmark rankings, cost-per-task comparisons, safety rates and partner results are Google's own claims; we did not reproduce them.
- The post gives no API model ID, context window or output limit, and does not say whether the Carbon for cyber variant has the same price.
- Rollout to AI Ultra subscribers is described as ongoing, so availability on a given account may lag.

## Timeline

- Source published: 2026-11-10 16:03 UTC
- First seen by our watcher: 2026-11-10 16:04 UTC (via Google DeepMind blog feed)
- Brief published: 2026-11-10 16:06 UTC

## Sources

- [Google DeepMind: Gemini 4 Carbon is now available](https://deepmind.google/blog/gemini-4-carbon-is-now-available/) (primary source) (fetched 2026-11-10)
- [Google DeepMind: Oct 28 Gemini 4 Carbon announcement](https://deepmind.google/blog/gemini-4-carbon-our-next-frontier-model/) (fetched 2026-10-28)

## Related

- [Gemini 4 Carbon: model facts, price and sources](https://theagenticweekly.com/models/gemini-4-carbon)
- [Oct 28 brief: Carbon announced for cyber defenders](https://theagenticweekly.com/news/google-deepmind-gemini-4-carbon)
- [Gemini 4 Argon](https://theagenticweekly.com/models/gemini-4-argon)
- [All model news briefs](https://theagenticweekly.com/news/models)
- [Gemini 4 Argon vs GPT-6.1 Sol](https://theagenticweekly.com/compare/gemini-4-argon-vs-gpt-6-1-sol)
- [Gemini CLI: verdict and setup guide](https://theagenticweekly.com/tools/gemini-cli)
- [All news briefs](https://theagenticweekly.com/news)
- [New AI models this week](https://theagenticweekly.com/models/this-week)
- [AI model releases by month](https://theagenticweekly.com/models/releases)
- [Best LLM for coding](https://theagenticweekly.com/best/llm-for-coding)

## How to cite

Agentic Weekly, "Gemini 4 Carbon is now available: API at $2/$10 until Nov 30, plus /swarm in Antigravity", published 2026-11-10 16:06 UTC, https://theagenticweekly.com/news/google-deepmind-gemini-4-carbon-is-now-available