Project Glasswing

Project Glasswing is an initiative announced by Anthropic in 2026 that gives a set of major technology and security partners early access to a frontier AI model, Claude Mythos Preview, so they can find and fix software vulnerabilities before similar capabilities spread more widely. For compliance and risk leaders, it signals that advanced AI is now being used to discover flaws in critical software at scale, which raises the bar for how quickly organizations must patch and how they assess the security of the AI tools they depend on.

2 items

ResearchGlobal2026-11-11

Glasswing's 94.2% Accuracy Claim Conflicts with Independent Evidence

Seven months into Anthropic's AI-driven vulnerability disclosure program, Project Glasswing, independent analysis by VulnCheck finds that only 217 of 37,966 reported findings have been marked fixed. An additional 1,654 have been flagged as duplicates. The curl open-source project rejected 19 of 34 published reports as non-vulnerabilities. This suggests a false positive rate of at least 55.9% in that sample. That figure directly conflicts with Anthropic's claimed 94.2% true positive rate. Compliance teams that have treated Anthropic's safety program metrics as evidence of vendor control quality face a due diligence gap.

Anthropic Project Glasswing vulnerability disclosure AI safety claims vendor due diligence responsible disclosure AI transparency

InsightUnited States2026-06-27

Mythos 5 Partial Reinstatement Creates Government-Controlled AI Access Tiers With No Transparent Process

The US government on June 27 granted roughly 100 approved companies access to Claude Mythos 5. Partially reversing a June 12 export control suspension, while Fable 5. Organizations outside the approved list remain locked out with no published selection criteria or recourse. The action is the first commercial enforcement under a new executive order framework for voluntary government pre-release review. Of frontier models. , making tiered access structural rather than ad hoc.

export controls Anthropic Claude Mythos Claude Fable frontier AI covered frontier model Project Glasswing government access tiers vendor risk national security executive order rule of law AI regulation supply chain OpenAI GPT-5.6 US AI Regulation