Claude Mythos Preview access tracker
Early Mythos access is concentrated among infrastructure, security, finance, and government institutions. The record follows named access, reported use, policy negotiations, and public institutional response.
Axios reports NSA use of Mythos despite the Pentagon supply-chain risk fight. The record is marked Reported, not official agency confirmation.
Open NSA recordBloomberg reports a small group of unauthorized usersgained access to Claude Mythos Preview — directly challenging Anthropic's Project Glasswing gating strategy on a model its own safety team flagged as too dangerous for public release.
Open Anthropic recordAccess ledger
Newest first across confirmed, reported, negotiating, and blocked records.
12 named partners are overwhelmingly US-based. 40+ remain undisclosed. The NSA has reported access. The Pentagon is legally barred.
Unknown pool
Anthropic confirmed that a second cohort — builders and maintainers of critical software infrastructure — received access. Their identities remain unconfirmed. This record will be updated as individual organizations are publicly sourced.
Open unknown-pool recordGlobal response
European, Canadian, Korean, Australian, Hong Kong, and Singapore institutions have public response signals in the current dataset.
Open data viewExclusion record
The Pentagon is legally barred from Mythos despite the NSA's reported use — an intra-government split with no public resolution. The EU's regulatory apparatus is active, but no European institution is in the named access record.
View all entriesGeopolitical read
Glasswing access has followed Five Eyes alignment. The United States, United Kingdom, and Australia each have named participants or reported government use. The European Union has been excluded from the launch cohort and has begun regulatory response through financial and cybersecurity authorities. China is actively blocked. This distribution is not incidental: Glasswing terms require compliance with U.S. export controls, which categorically bars entities subject to Chinese government oversight.
Dispatch
New access confirmations and record changes, published when sourced. Low volume.
“Official” means a primary source names the entity. “Reported” means credible public reporting names the entity but the agency or company has not been treated here as self-confirming. Unknown disclosures are tracked as unknown-pool entries until individual identities are sourced.
This first version is intentionally narrow: fewer claims, stronger labels, and no invented precision.
Each entry links to its sources. Data is licensed CC BY 4.0 and may be cited, republished, or incorporated into derivative work with attribution.