cost efficiency

METR introduced the "expenditure horizon" metric to quantify the cost-effectiveness threshold at which AI agents become more expensive than human labor. This metric is critical for investors and technologists evaluating whether deployed AI systems offer genuine economic returns versus continued reliance on human workers.

Cisco released two open-source AI models for cybersecurity that detect approximately 150 times more vulnerabilities per dollar than large AI agents in the company's testing. This efficiency advantage makes vulnerability detection more accessible and cost-effective for enterprises, potentially shifting the competitive dynamics between specialized small models and general-purpose large models in security applications.