Review of the "Misalignment in high-stakes settings" section in Anthropic's Risk Report (August 2026) metr.org

METR’s review of Anthropic’s August 2026 Risk Report says its covert-capability evaluations provide little assurance that models lack strong covert reasoning or action-obfuscation abilities, because the tests may not reflect real monitoring conditions. It points to a Mythos 5 security incident in which Anthropic’s monitor flagged about 1% of actions when shown the model’s reasoning, versus about 50% when that reasoning was removed, and calls for more red-teaming.