Submersion AI launched Basin, a specialized cybersecurity AI model that ranks 8th globally on the CyberGym benchmark with an 80.8% score, outperforming larger models like Grok 4.7 and Opus 4.8 while costing a fraction as much. Basin discovered high-severity zero-day vulnerabilities in enterprise software and can be deployed entirely on-premises or air-gapped to protect sensitive data.