Cant wait to use Mythos model - Anthropic refuses to release Claude Mythos publicly — model found thousands of zero-days across every major OS and browser. Launches Project Glasswing with Apple, Microsoft, Google, and others for defensive use.

Reddit r/artificial / 4/9/2026

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Key Points

Anthropic launched Project Glasswing, a defensive cybersecurity initiative with partners including Apple, Microsoft, Google, AWS, NVIDIA, and CrowdStrike.
Claude Mythos Preview results reportedly identified thousands of high-severity zero-day vulnerabilities across major operating systems and web browsers, including some allegedly undetected for years.
The company claims strong technical performance benchmarks for the model (e.g., SWE-bench 93.9%) and significantly increased exploit-development throughput for Firefox compared with a prior Opus 4.6 baseline.
Access to the preview was expanded to 40+ organizations and $100M in usage credits were committed, while Anthropic reportedly refused to release Claude Mythos publicly due to safety concerns.
The article frames a strategic tension: whether withholding the model is necessary for risk reduction or whether it could function as a competitive moat.

Anthropic announced Project Glasswing, a defensive cybersecurity initiative with Apple, Microsoft, Google, AWS, NVIDIA, CrowdStrike, and others.

Claude Mythos Preview has found thousands of high-severity zero-day vulnerabilities across major operating systems and web browsers — some had been hiding for years.

Key benchmarks:

- SWE-bench: 93.9% (vs 80.8% for Opus 4.6)

- Firefox exploit development: 181 vs 2 for Opus 4.6

- $100M in usage credits committed

- 40+ orgs given access

Source: https://venturebeat.com/technology/anthropic-says-its-most-powerful-ai-cyber-model-is-too-dangerous-to-release

Is withholding a model the right play, or does "too powerful to share" become a competitive moat?

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