Google releases Gemini 4 Carbon
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Google releases Gemini 4 Carbon — a successor to Gemini 4 Argon, released 2 weeks earlier, put forward for cybersecurity and long-horizon tasks. Introductory pricing is $2 per 1 million input tokens and $10 for output, with a 95% discount on cached input; once the introductory period ends it is $4 for input and $20 for output. For now it is open only to some cyber defenders, and Google said it will widen access to trusted partners through the Fairwind program
Why it matters
Company-reported: No. 1 on the Artificial Analysis Intelligence Index v5.0 with 59, No. 4 on WebDev Arena at 1768 Elo, up 89 points, SEC-bench Pro 88.2%, ExploitGym 54.8%, CWE-bench 71.0%, a 0.0% attack success rate on Gray Swan indirect prompt injection (Argon 0.7%), and on Terminal-Bench 4.0 a 0.0% cheating success rate with cheating attempted 0.4% of the time. Internally it wrote that secure code generation is more than 2 times better than Argon, while unsupported claims are down by a factor of about 2, overreach down 26%, under-response down 29% and high-risk alignment alerts down about 80%. The deployment order itself — sending a frontier model to the defending side first rather than to the general public — is what this announcement is about
Source — Primary sources first; secondary reports are labelled “Press”
Officialblog.googlehttps://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-carbon/Added in Week 44, 2026 · See that week
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