Cisco is joining Anthropic’s Project Glasswing initiative, which will offer Anthropic’s unreleased Claude Mythos Preview software to a coalition of vendors to help define how AI resources will be protected from cyber threats.

Project Glasswing brings together Amazon Web Services, Anthropic, Apple, Broadcom, Cisco, CrowdStrike, Google, JPMorgan Chase, the Linux Foundation, Microsoft, Nvidia, and Palo Alto Networks. Anthropic wants the group to build a coordinated technology answer for AI security threats through tasks such as vulnerability detection, black box testing of binaries, securing endpoints, and system penetration testing.

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According to Anthropic, Project Glasswing partners will get access to its as yet unreleased Claude Mythos Preview to find and fix vulnerabilities or weaknesses in their foundational systems—systems that represent a very large portion of the world’s shared cyberattack surface, the vendor wrote in its announcement. Anthropic calls Claude Mythos Preview a next-generation AI frontier model featuring advanced reasoning and code development.

“New AI models, especially those from Anthropic, have triggered a new set of actions for how we build and secure our products,” wrote Anthony Grieco, chief security & trust officer at Cisco, in a blog post about the project. “We are using these new capabilities to find and fix vulnerabilities at a speed and scale previously impossible, while simultaneously accelerating the development of security products capable of defending against AI-enabled adversaries.”

“While the capabilities now available to defenders are remarkable, they soon will also become available to adversaries, defining the critical inflection point we face today,” Grieco wrote. “Defensively, AI allows us to scan and secure vast codebases at a scale previously unimaginable. However, it also lowers the threshold for attackers, empowering less-skilled actors to launch complex, high-impact campaigns.”

Anthropic is committing $100 million in model usage credits to Project Glasswing, “and additional participants will cover substantial usage throughout this research preview,” Anthropic stated. “Afterward, Claude Mythos Preview will be available to participants at $25/$125 per million input/output tokens (participants can access the model on the Claude API, Amazon Bedrock, Google Cloud’s Vertex AI, and Microsoft Foundry).”

In addition to model usage credits, Anthropic donated $2.5 million to Alpha-Omega and OpenSSF through the Linux Foundation, and $1.5 million to the Apache Software Foundation “to enable the maintainers of open-source software to respond to this changing landscape.”

“Partners will, to the extent they’re able, share information and best practices with each other; within 90 days, Anthropic will report publicly on what we’ve learned, as well as the vulnerabilities fixed and improvements made that can be disclosed,” Anthropic stated.

Anthropic said it will collaborate with security organizations to produce a set of practical recommendations AI security practices such as vulnerability disclosure, software update, open-source and supply-chain security, and software patching automation.

“Claude Code is changing how developers build software. AI agents are reshaping how enterprises automate operations,” wrote CrowdStrike in its own blog post about the project. “Anthropic’s Mythos Preview expands the reasoning, planning, and execution capabilities of AI agents. They all touch the endpoint — where data is accessed, decisions are made, value is delivered, and risk is born.”

“New models are also where opportunity is the largest. The same frontier models that expand the attack surface give defenders a capability advantage that did not exist a year ago: discovering vulnerabilities, detecting threats, and responding to incidents faster than ever before,” CrowdStrike wrote.

CrowdStrike’s 2026 Global Threat Report found an 89% increase in attacks by adversaries using AI year-over-year. The use of AI for vulnerability discovery and exploit development is accelerating on both sides, the vendor stated.

“Every organization can expect increasing pressure from AI-enabled threats while the work of hardening systems, developing fixes, and deploying updates works its way through the accelerated cycle of technology adoption,” Cisco’s Grieco wrote. “AI capabilities will continue to advance, the threat surface will evolve, and the organizations that protect the internet will need to operate at the speed of machines and the scale of networks. Much of what we are now experiencing would have been unimaginable just a few years ago.”

Ultimately, Anthropic said it hopes “that Project Glasswing can seed a larger effort across industry and the public sector, with all parties helping to address the biggest questions around the impact of powerful models on security.”