Anthropic expands Mythos Preview access to 150 critical organizations
Anthropic expanded Project Glasswing access to Claude Mythos Preview by about 150 organizations across more than 15 countries, prioritizing power, water, healthcare, communications, hardware, and critical software providers.
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Why it moved the index
The completed access expansion materially widened deployment of a restricted frontier cyber model across organizations operating critical infrastructure, even though vetting and defensive-use restrictions remained.
Assessment history
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R1
Toward 50 · confidence 96
New model-specific restricted-access expansion across critical infrastructure and multiple countries.
11 Aug 2026
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DoomBench assesses “Anthropic expands Mythos Preview access to 150 critical organizations” as evidence moving toward doom, with magnitude 50 and confidence 96 out of 100 in the deployment reach category.
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The DoomBench assessment of “Anthropic expands Mythos Preview access to 150 critical organizations” is based on reporting from Anthropic and records the editorial rationale, source quality, attribution, and revision history.
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DoomBench summarizes “Anthropic expands Mythos Preview access to 150 critical organizations” as follows: Anthropic expanded Project Glasswing access to Claude Mythos Preview by about 150 organizations across more than 15 countries,...
https://www.doombench.com/news/anthropic-expands-mythos-preview-access-to-150-critical-organizations-2026-06-02