Release dates
— Google announced Gemini 4 Carbon on 2026-10-28, beginning controlled access for a subset of cyber defenders and planning to expand to trusted partners; developer, business, and consumer access is forthcoming. ↗
Gemini 4 Carbon
A frontier model in the Gemini 4 family for cybersecurity and long-horizon engineering tasks, currently in controlled access for trusted defenders.
Google began controlled access for a subset of cyber defenders on 2026-10-28 and plans to expand access gradually to trusted partners through Fairwind; developer, business, and consumer product access is still forthcoming. The launch post does not publish a separate API model ID.
MODEL NUMBER152
- First public date
- 2026-10-28
- Organization
- Google DeepMind
- Family
- Gemini
01
Specifications
Only published specifications are shown.
- Status
- Preview
02
Overview
Why it mattered
Google presents Carbon as a major capability step after Gemini 4 Argon, focused on long-horizon coding and the cybersecurity-defense lifecycle. It is still a controlled preview; planned API and product access are not recorded as already launched.
PreviousGemini 4 Argon— · 1.05M ctx
CurrentGemini 4 Carbon— · — ctx
04
Architecture & capabilities
Model capabilities
CybersecurityCodingReasoning
05
Release history
Google announced Gemini 4 Carbon on 2026-10-28, beginning controlled access for a subset of cyber defenders and planning to expand to trusted partners; developer, business, and consumer access is forthcoming.
View source06
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07
Sources
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