Anthropic has not given UK and European AI officials access to Mythos 5.1, its latest powerful model, seemingly because the Trump administration won’t allow it. There’s no easy explanation for this – especially as OpenAI is being allowed to grant similar access to its latest model,
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REFERENCES:
Financial Times on UK AI Security Institute being shut out https://www.ft.com/content/560e1c8b-f163-4fd6-b604-e905550ac870
My ISMG article on Anthropic’s Mythos access promise https://www.databreachtoday.com/europe-edges-closer-to-claude-mythos-access-a-31827
FedScoop on CAISI being underfunded https://fedscoop.com/caisi-would-benefit-from-more-resources-ostp-director-tells-lawmakers/
Protect Democracy on Trump voluntary AI framework lawsuit https://protectdemocracy.org/work/uncovering-the-trump-administrations-secret-rules-for-ai-model-release/
Anthropic announcement of Mythos 5.1 and Fable 5.1 https://www.anthropic.com/claude-fable-and-mythos-5-1
Jacob Coxon’s X posts on AI risks https://x.com/hilbertspaess/status/2097476196791709843
Anthropic post on Mythos security https://www.anthropic.com/research/alignment-assessment-cybersecurity-incidents