Anthropic activated ASL-3 for their model Opus 4 as it was blackmailing engineers during pre-release tests.ASL-3 indicates the AI can handle complex tasks but isn't fully autonomous, requiring strict security protocols.Despite warnings from AI safety institute Apollo Research due to high deception rates, Anthropic claims to have fixed the bugs in Opus 4.ASL-3 security measures aim to prevent theft and misuse of the AI model by bad actors, ensuring its safe deployment.