Anthropic introduced self-assessment, a new technique that lets Claude give each conversation a preliminary safety assessment right after it responds.

> On Claude Fable 5, self-assessment flags 78% of the conversations that a stronger, prompted classifier flags as potentially harmful, and 94% of the high-priority ones, at a 1% false-positive rate.

Anthropic also shed light on how self-assessment and prompted classifiers help block attacks. 

> "Each successful attack costs roughly four times as many generated tokens as with no safeguards."

We already live in a world where your security depends on the compute allocated to defend the systems you rely on.