❯ Anthropic Ships Mythos 5 Into Claude Security, Enterprise Beta of Vulnerability Scanning Opens Today

LAUNCHPer Anthropic’s official announcement, Claude Security’s code scanning has switched to the strongest model, Claude Mythos 5, now in public beta for all Claude Enterprise customers as of today. Scanning is billed at standard token usage, runs through existing plans, and carries no separate plugin fee—enterprises don’t need to request separate model access for this.

USAGEThe scanner connects to GitHub repositories and tracks data flows across files; each result includes CWE weakness classification, confidence and severity ratings, and suggested patches. What the product returns is a scan report, not a chat interface—the same model cannot be reverse-prompted to write exploit code, a deliberate design choice. The company had already been embedding Mythos 5 into partner security products covering hospitals, utilities, and banks, and has set up a $35 million Claude credit fund for open-source software security.

ACCESSThe eligibility line is drawn clearly: only organizations with a signed enterprise agreement and code hosted on GitHub qualify; the Pro, Max, and Team tiers are all shut out. Vulnerability scanning options for SMB teams therefore remain unchanged, with frontier-model security capabilities still allocated by contract size. What to watch next is whether this beta eligibility bar moves down to the Team tier alongside the pricing structure.

▪ SIGNALThe strongest model gets vulnerability scanning for enterprise customers first; what SMB teams are waiting on isn’t technical maturity, it’s the contract threshold coming down.