While other programs now offer stabilization, Sai’s algorithm feels different. It’s not just smoothing; it’s predictive. The delay between pen and pixel creates a sense of gravity . Drawing a line in Sai feels like pulling taffy—slow, controlled, and satisfyingly tactile. For artists with hand tremors or those transitioning from traditional ink pens, this feature isn't a luxury; it's a necessity.

One of the defining characteristics of SAI, particularly in its version 1 release, was its minimal system footprint. Unlike its competitors, which required substantial RAM and GPU power, SAI was optimized to run smoothly on the modest hardware common in the late 2000s. This accessibility was crucial for hobbyists and young artists who could not afford high-end workstations. The software loaded almost instantly and saved large files with speed, reducing friction in the artistic workflow.

For many professionals, SAI remains a "sketching" tool used for rough concepts and line art, even if the final coloring is done in Photoshop or Clip Studio. This specialized role ensures its continued presence on digital artists' hard drives.