Google Unveils Gemini 4 Carbon, Doubling Secure Code Output Over Argon
Updated
Updated · Ars Technica · Oct 28
Google Unveils Gemini 4 Carbon, Doubling Secure Code Output Over Argon
3 articles · Updated · Ars Technica · Oct 28
Summary
Two weeks after Gemini 4 Argon, Google introduced Gemini 4 Carbon as a stronger frontier model but is keeping it in a staged release rather than opening broad access immediately.
Carbon’s biggest claimed advance is cybersecurity: Google says it is twice as likely as Argon to produce vulnerability-free code and delivers a significant leap in detecting, validating and fixing flaws.
Google’s Chrome team said Carbon is 10 times better at generating high-quality patches than non-Google models, while the model also gained 89 points on WebDev Arena to reach No. 4.
Across Google’s benchmarks, Carbon edges Argon in every test and beats GPT-6 Astra, Claude Opus 5.5 and Claude Fable 5.1 in most categories, though the margins are only a few points.
The launch extends Google’s rapid post-pause model cadence, but the company has not clarified how distinct Carbon is from Argon beyond positioning it as a new model.