Anthropic reveals Fable 5's cyber safeguards and jailbreak framework
Anthropic just detailed the cybersecurity protections baked into its globally redeployed Claude Fable 5. The model relies on dedicated safety classifiers to sort tasks into four risk tiers, intentionally widening its safety margin to block high-risk dual-use actions like exploit creation. Alongside the update, Anthropic introduced a draft jailbreak severity framework and launched a HackerOne bug bounty program to crowdsource vulnerabilities.