Banking scale has been measured in assets, deposits, and branches. In 2026, another metric may be emerging: how much of the country’s financial activity would be disrupted if your systems stopped working.
That helps explain why Fifth Third’s recent invitation to Anthropic’s Project Glasswing holds importance. The bank has been invited into an invite-only cybersecurity program that grants a small group of vetted partners early access to the Claude Mythos Preview model.
Project Glasswing is a controlled-access initiative, bringing together a limited set of trusted organizations to test advanced AI systems in real-world security environments. The focus is on detecting and helping remediate critical software vulnerabilities at scale. Anthropic has said its Mythos models have already identified more than 10,000 vulnerabilities in widely used, systemically important software, and Glasswing extends that capability to selected partners before wider deployment.
That signals the direction Fifth Third is moving in. The same week, it rolled out a refreshed small-business platform to over 240,000 customers.
From banking customers to orchestrating flows
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