Gemini 4 Carbon Release Date: What Google Has Said So Far

Carbon Studio is independent and not affiliated with Google. Gemini 4 Carbon is not available on this site. Google's announcements are the authoritative source.

Google announced Gemini 4 Carbon on October 28, 2026, about two weeks after Gemini 4 Argon. The announcement came with strong benchmark numbers and an unusual twist: Gemini 4 Carbon is not broadly available. If you searched for the Gemini 4 Carbon release date hoping to try it today, here is what is actually known.

Announced, but not generally released

There is a difference between a Gemini 4 Carbon announcement and a Gemini 4 Carbon public release. Google has published the model, its positioning and its results, but access is staged. According to Google, Gemini 4 Carbon is rolling out to cyber defenders first. Google says it plans to widen Gemini 4 Carbon availability through its Fairwind Program, and it has not set a date for general public access.

So, as of today, the honest answer to "when is the Gemini 4 Carbon release date?" is: the announcement was October 28, 2026, and the public release date has not been announced.

Why Gemini 4 Carbon is rolling out slowly

The reason is in the benchmarks. Google describes Gemini 4 Carbon as state of the art in cybersecurity. Reported results include 88.2% on SEC-bench Pro for vulnerability detection, 54.8% on ExploitGym for exploitation and 71.0% on CWE-bench for patching. A model that is that good at finding and exploiting flaws is valuable to defenders and attackers alike. Giving security teams a head start lets them patch before Gemini 4 Carbon is widely available.

Gemini 4 Carbon before the announcement

Gemini 4 Carbon did not appear out of nowhere. Business Insider reported on October 9, 2026 that Google employees had access to Carbon through an internal coding environment referred to as Jetski. Early community posts attributed to Gemini 4 Carbon showed it generating code-driven visuals such as SVG illustrations and three.js scenes. Those posts were labelled by their authors; the model identity behind them could not always be confirmed.

What to expect next

Based on how Google usually ships Gemini models, a wider Gemini 4 Carbon release would most likely arrive through Google's own channels: the Gemini app, Google AI Studio and Vertex AI. Watch for three signals:

1. A Fairwind Program update naming new groups that can use Gemini 4 Carbon.
2. A pricing page entry confirming whether introductory Gemini 4 Carbon prices of $2 / $10 per million tokens stay or rise.
3. Model cards and docs for developers, which typically precede general availability.

Be careful with "Gemini 4 Carbon access" offers

Because demand is high and access is limited, you will see sites claiming to offer Gemini 4 Carbon generation today. Ask which model actually runs. If a site sells image, video or music generation under the Gemini 4 Carbon name, it is using other models: Gemini 4 Carbon is a reasoning, coding and agent model, not a media generator.

We take the same approach on Carbon Studio. Gemini 4 Carbon is listed in our model picker as Not available and is not connected. The image, video and music models you can use are named on every run.

The short version

• Announced: October 28, 2026.
• Who has Gemini 4 Carbon now: cyber defenders first.
• Who gets it next: participants in Google's Fairwind Program.
• Public release date: not announced.

We will update this post when Google publishes a Gemini 4 Carbon release date. In the meantime, read our Gemini 4 Carbon guide or start creating with the AI image generator.