Anthropic Unveils Claude Mythos Preview with Advanced Cybersecurity Capabilities
A restricted AI model discovered thousands of unknown vulnerabilities, sparking a major security debate while revenue soared.
Anthropic's April 2026 was a landmark period defined by a powerful but controversial AI model and explosive business growth. The centerpiece was the restricted release of Claude Mythos Preview, a frontier model purpose-built for cybersecurity that autonomously discovered thousands of previously unknown vulnerabilities across major operating systems and browsers. Due to the offensive risk, Anthropic delayed its public release indefinitely, instead granting exclusive access to the 40+ members of its newly formed Project Glasswing consortium, which includes AWS, Google, Microsoft, and Apple. This decision ignited a fierce debate about creating a two-tier security landscape.
Alongside this security milestone, Anthropic's business metrics skyrocketed. The company confirmed its annual revenue run rate had tripled from $9B in late 2025 to $30B, driven by over 1,000 enterprise customers each spending more than $1 million annually. It closed a Series G funding round at a staggering $380 billion valuation. The company also launched Claude Managed Agents and Claude Cowork to General Availability, providing production-ready AI agent tooling for developers and teams. To support this scale, Anthropic secured massive infrastructure deals, including a 3.5GW TPU capacity agreement with Google and Broadcom and a multi-year GPU cloud deal with CoreWeave, while also exploring custom chip design.
- Claude Mythos Preview discovered thousands of unknown zero-day vulnerabilities but its public release was delayed due to offensive security risks, limiting access to the Project Glasswing consortium.
- Anthropic's revenue run rate tripled to $30B annually with over 1,000 enterprise customers spending $1M+ each, and the company reached a $380B valuation.
- The company launched Claude Managed Agents and Claude Cowork to GA and secured major compute deals with Google/Broadcom (3.5GW TPUs) and CoreWeave for GPU cloud capacity.
Why It Matters
This marks a pivotal moment where AI's power for both defense and offense forces difficult policy decisions, while cementing Anthropic's position as a trillion-dollar-scale contender.