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  "description": "Anthropic’s Claude Mythos is moving closer to public release as Mythos 1, with new leaked evidence and an updated Claude Security dashboard for Enterprise customers.",
  "path": "/anthropic-prepares-mythos-1-for-claude-code-and-claude-security/",
  "publishedAt": "2026-05-23T22:59:32.000Z",
  "site": "https://www.testingcatalog.com",
  "tags": [
    "Claude Mythos",
    "May 22, 2026",
    "Some users were temporarily able to see",
    "Claude Security",
    "Opus 4.7",
    "@AnthropicAI"
  ],
  "textContent": "Anthropic appears to be moving Claude Mythos closer to broader availability than its original guidance suggested. A recent Project Glasswing update notes that the model is now helping protect a wider range of organizations, including open-source projects, and adds that Mythos-grade models could reach the public once the right safeguards are in place.\n\n> Last month we launched Project Glasswing, our collaborative AI cybersecurity initiative. Since then, we and our partners have found more than ten thousand high- or critical-severity vulnerabilities in essential software.\n>\n> — Anthropic (@AnthropicAI) May 22, 2026\n\n> And in the near future, once we’ve developed the far stronger safeguards we need, we look forward to making Mythos-class models available through a general release.\n\nThis marks a notable shift from the earlier framing, in which Anthropic stated that Mythos would remain restricted. Traces of the model have already surfaced on Google Cloud and AWS through vulnerability discovery programs, and signals now point to a product called Mythos 1, carrying a preview label (**\"claude-mythos-1-preview\"**), being prepared for Claude Code and Claude Security.\n\nMythos 1\n\nSome users were temporarily able to see the \"Mythos 1\" model in the UI. Besides that, new strings have been added to the source code recently:\n\n> \"Access to the Claude Mythos model in Claude Code and Claude Security.\"\n\nClaude Security\n\nThe Claude Security side of that rollout is getting structural work too. A new dashboard is being built that surfaces discovered vulnerabilities, seven-day and thirty-day historical charts, and deeper triage results. There are no indications yet that the product will move beyond enterprise customers, but the refresh brings it closer to parity with how rival security suites present scan history.\n\nIn parallel, **Claude Opus 4.8** **is rumored to be in the works for release** , with select Anthropic partners already conducting internal evaluations. A launch in the coming weeks would fit the cadence set by Opus 4.7 in April and would slot neatly alongside the Mythos and security product moves.",
  "title": "Anthropic prepares Mythos 1 for Claude Code and Claude Security",
  "updatedAt": "2026-05-23T23:28:32.265Z"
}