Gemini 4 Carbon

Changes from previous version

Follows Gemini 4 Argon by four weeks at the same introductory $2/$10 list price. On Google's comparison table, SEC-bench Pro moves from 83.4% to 88.2%, ExploitGym from 42.0% to 54.8%, CWE-bench from 68.0% to 71.0%, and Terminal-Bench 4.0 from 57.1% to 65.2%. Gray Swan indirect prompt injection attack success at 15 attempts is 0.0%, against 0.7% for Argon. Fairwind is still the external path, and there is still no public API model ID.

Release Summary

Google's next frontier Gemini model after Gemini 4 Argon, for cybersecurity defense and long-horizon engineering. Introductory list price is $2 per million input tokens and $10 per million output tokens, with cached input 95% below the input rate. After the introductory period the list price is $4/$20. The end date is not published. A measured price per task at high effort is $7.76 at the standard $4/$20 rate. The announcement does not list a context or output cap. This catalog uses a 1M-token combined window for both. Text, image, video, and speech in, text out. Google has not published an API model ID. External access starts with a subset of cyber defenders through the Fairwind Program. On Google's comparison table, SEC-bench Pro is 88.2%, ExploitGym is 54.8%, CWE-bench is 71.0%, and Terminal-Bench 4.0 is 65.2%. Claude Opus 5.5 leads OSWorld 2.1 on that table at 87.2%, against 81.5% here. GPT Astra 6 leads FrontierSWE 2 at 65.5%, against 61.2%. WebDev Arena is 1768 Elo. Gray Swan indirect prompt injection attack success at 15 attempts is 0.0%.

Timeline

Other Gemini versions