Parcae: Doing more with fewer parameters using stable looped models

2026-04-16

Parcae is one of the first stable architectures for looped language models. It achieves the quality of a Transformer twice the size with clean, predictable training. Parcae increases the recurrence rather than purely scaling data, creating a new medium to scale quality. The name Parcae is a homage to the three Roman fates: Nona, Decima, and Morta.