Google releases Gemini 4 Carbon for cyber defenders
Google describes Gemini 4 Carbon as its strongest model, citing cybersecurity and long-horizon capabilities. It is available to a subset of cyber defenders.
By AI Models Router newsroom · (UTC)
Google released Gemini 4 Carbon on October 28, 2026. Koray Kavukcuoglu, SVP of Google DeepMind and Chief AI Architect, announced the model, which Google describes as its strongest, citing cybersecurity and long-horizon capabilities. It builds on Gemini 4 Argon, which launched two weeks earlier.
Key specs
- Availability begins with a subset of cyber defenders, then trusted partners through the Fairwind Program.
- Google said access for developers, businesses and consumers will come as soon as possible, and gave no date.
- Context window: not stated by Google.
- Introductory pricing: $2 per 1M input tokens and $10 per 1M output tokens, matching Gemini 4 Argon.
- Later pricing: $4 per 1M input tokens and $20 per 1M output tokens, with a 95% discount on cached input.
Benchmarks
- Artificial Analysis Intelligence Index v5.0: rank 1, score 59.
- SEC-Bench Pro: 88.2%.
- ExploitGym: 54.8%.
- CWE-Bench: 71.0%.
- WebDev Arena: rank 4, score 1768.
- Gray Swan prompt injection success rate: 0.0% for Gemini 4 Carbon, compared with 0.7% for Gemini 4 Argon.
Google published the release details in a blog post. The company has not said when access will extend beyond cyber defenders and Fairwind partners.
Sources
Build with models available today
Gemini 4 Carbon is not available on AI Models Router. These comparable models are, through one OpenAI-compatible API with prepaid credits: