AI Safety Aug 7, 2026
Anthropic Improves Fable 5 Biology Safeguards After Red-Teaming
Anthropic published details on how it improved Fable 5's biology safeguards following internal and external red-teaming. The update strengthens protections against misuse while maintaining the model's research capabilities.
AI Research Jul 24, 2026
Anthropic Releases Claude Opus 5: Matches Fable 5 Performance at Half the Price
Anthropic launched Claude Opus 5, scoring 43.3% on Frontier-Bench v0.1 — surpassing all competitors. Priced at $5/M input and $25/M output tokens, it delivers near-Fable 5 intelligence at half the cost per task, making it the new default on Claude Max.