Google says Gemini 4 Carbon resisted every prompt-injection attack.

Google is withholding it from the public, citing its strength in coding and cybersecurity.

Carbon rolls out through Google’s Fairwinds cyber defense program after testing under the US government’s voluntary framework.

Google’s own benchmarks put Carbon only a few points ahead of rival models.

Google gave no wide-release date, and has not said when Carbon’s discounted developer rate ends.

How each outlet framed it
Ars Technica
calls Google's benchmark claims 'vague assessments' and says Carbon is essentially a slightly better Argon

Sources: Ars Technica