AI Glossary
Frontier model
What does “Frontier model” mean?
Frontier model: Informal label for the most capable AI systems available at a given time, usually from the labs spending the most on training. Because the cutting edge keeps moving, a model considered frontier today may not be next year.

What is an example of “Frontier model”?
Governments and AI labs often apply extra safety testing and reporting rules specifically to frontier models, given their broader potential for both benefit and misuse.