# Google opens Gemini 4 Carbon to paying developers and previews agent "swarms" in Antigravity

> Its strongest model launches at $2 in and $10 out per million tokens, about a quarter of what Fable 5.2 costs, and Google says Argon still suits most coding work.

- URL: https://devisdead.ai/news/google-opens-gemini-4-carbon-to-paying-developers-and-previews-agent-swarms-in-a
- Published: 2026-11-10T16:16:54Z
- Author: DevIsDead Newsroom
- Section: AI
- Tags: google, gemini, agents, pricing
- Originally reported by The Verge (https://www.theverge.com/ai-artificial-intelligence/1030787/google-gemini-4-carbon-public-rollout).

Two weeks after giving a small group of cybersecurity defenders first access, Google is releasing Gemini 4 Carbon more widely, Robert Hart reports for [The Verge](https://www.theverge.com/ai-artificial-intelligence/1030787/google-gemini-4-carbon-public-rollout). Google calls it its strongest model and pitches it against the best from Anthropic and OpenAI.

## Carbon vs. Argon

Google launched Argon, its other frontier model, only last month, and it isn't retiring it. The company says Argon will probably stay the better pick for most software engineering and knowledge work. Carbon is meant for the hard stuff: long, multi-step coding jobs and open-ended scientific research.

To show off the long-horizon angle, Google is previewing a "swarm" feature in Antigravity, its agentic development platform. One prompt spins up a coordinated team of agents.

## Who gets it

- **Developers and businesses:** all paying developers and enterprises, via Google AI Studio's Gemini API or the Gemini for business product.
- **Consumers:** people on the Google AI Ultra plan, inside Antigravity, Search's AI Mode and the Gemini app.
- **Everyone else:** no word on lower tiers or free users.

## The price

For now a million tokens costs $2 going in and $10 coming out. By The Verge's math that's roughly 20% of what GPT-6 Astra from OpenAI charges and 25% of Anthropic's Fable 5.2, which came out yesterday. The rates double when the introductory period ends at the close of November, and Carbon still comes in well below its rivals per token.

Per-token price isn't the whole bill, though. Models burn different amounts of tokens on the same job, so cheaper tokens don't guarantee a cheaper task.

## The benchmarks

The numbers Google published at the announcement put Carbon near the top on most measures, behind Fable 5.2. Vendors pick the benchmarks that flatter them, so treat those as a pitch. Still, coming right after Argon, the launch puts Google back in a race that for months looked like Anthropic against OpenAI.

**[Scoreboard](/scoreboard) update:** AI +1. Google's strongest model ships widely at a fraction of its rivals' per-token prices.

Stay undead.