{"rewrite":{"id":"r_9c3870f3a01f1ebcd0ac311f","clusterId":"c_ff6c07c0fca8de84e3aac822","slug":"early-users-of-anthropic-mythos-still-retain-access-after-us-order","model":"deepseek-v4-flash","headline":"Early Users of Anthropic Mythos Still Retain Access After US Order","summary":"Despite the US government ordering Anthropic to halt distribution of Claude Mythos 5 and Claude Fable 5 on June 13, 2026, Bloomberg reports that some organizations that participated in early testing of Claude Mythos Preview still have access to the model. The early access was part of Project Glasswing, an initiative to use AI for cyber defense.","whyItMatters":"The continued access for early testers means the model's capabilities remain in limited circulation even after a national security directive, raising questions about the effectiveness of the halt order.","webCardHtml":"\u003cp\u003eAnthropic released Claude Mythos Preview on April 7, 2026, to select organizations for cyber defense testing under Project Glasswing. On June 9, the company updated the model as Claude Mythos 5 and Claude Fable 5. Four days later, US national security authorities ordered Anthropic to stop providing both models to all foreigners, including its own foreign employees, citing suspicions of Chinese government-linked access and concerns raised by Amazon CEO Andy Jassy. Anthropic complied by halting distribution to all customers.\u003c/p\u003e\u003cp\u003eBloomberg reported on June 18 that some early testers of Claude Mythos Preview still retain access to the preview version after the order. Project Glasswing, which grants multiple organizations access to high-risk AI models to identify vulnerabilities, continues to operate. The initial participants included AWS and other unnamed entities.\u003c/p\u003e","blueskyPost":"Project Glasswing members keeping Claude Mythos Preview access after the US halt means the regulation is porous by design. The gap between order and enforcement is where cyber defense interests sit.","twitterPost":"Project Glasswing members kept Claude Mythos Preview access after the US halt. The regulation stopped distribution, not use.","threadsPost":"Project Glasswing members still have Claude Mythos Preview access after the US halt. The order stopped new distribution but left existing early testers untouched. That gap matters for how AI regulation actually lands in practice.","newsletterBlurb":"Bloomberg reports that some organizations that participated in early testing of Anthropic's Claude Mythos Preview still have access to the model after the US government ordered a halt to its distribution. The early access is part of Project Glasswing, an initiative to use AI for cyber defense.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260622-mythos-still-access/\",\"title\":\"Reports indicate that despite the US government ordering Anthropic to cease distribution of 'Claude Mythos,' preview versions remain accessible to members of Anthropic's selected 'Project Glasswing'\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4267,"outputTokens":582,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1782132513,"createdAt":"2026-06-22T12:37:21.000Z","publishedAt":"2026-06-22T12:40:24.000Z","updatedAt":"2026-06-22T12:40:24.000Z"},"cluster":{"id":"c_ff6c07c0fca8de84e3aac822","canonicalTitle":"アメリカ政府がAnthropicの「Claude Mythos」の規制命令を下すもAnthropicが選定した「Project Glasswing」のメンバーにはプレビュー版が提供されたままであるという報道","representativeArticleId":"a_4a2db37330d7dd3289ef6db0","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-06-22T11:30:00.000Z","lastSeenAt":"2026-06-22T11:30:00.000Z","updatedAt":"2026-06-22T12:40:24.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260622-mythos-still-access/","title":"アメリカ政府がAnthropicの「Claude Mythos」の規制命令を下すもAnthropicが選定した「Project Glasswing」のメンバーにはプレビュー版が提供されたままであるという報道"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":["Anthropic released Claude Mythos Preview on April 7, 2026, to select organizations for cyber defense testing under Project Glasswing.","On June 13, 2026, US national security authorities ordered Anthropic to stop providing Claude Mythos 5 and Claude Fable 5 to all foreigners, including its own foreign employees.","Bloomberg reported on June 18, 2026, that some early testers of Claude Mythos Preview still retain access to the preview version after the halt order.","Project Glasswing, which grants multiple organizations access to high-risk AI models to identify vulnerabilities, continues to operate.","The initial participants of Project Glasswing included AWS and other unnamed entities."]}