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Anthropic Briefs FSBoard; Mythos Passes Test, IMF Flags Risks

5/18/2026

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Summary

Story summary

Anthropic will brief the Financial Stability Board on its Claude Mythos AI model, limited to select banks and tech firms.
The UK AI Security Institute reported Mythos passed the unsolved “cooling tower” test three of ten attempts, a first.
The International Monetary Fund warned that rapid AI developments raise financial-stability risks and urged a coordinated response, while UK regulators issued guidance for firms to improve cyber hygiene.

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Story summary

Anthropic will brief the Financial Stability Board on its Claude Mythos AI model, limited to select banks and tech firms.
The UK AI Security Institute reported Mythos passed the unsolved “cooling tower” test three of ten attempts, a first.
The International Monetary Fund warned that rapid AI developments raise financial-stability risks and urged a coordinated response, while UK regulators issued guidance for firms to improve cyber hygiene.