Question

what do you understand by models and standard models

Answer 1

The Standard Model includes the electromagnetic, strong and weak forces and all their carrier particles, and explains well how these forces act on all of the matter particles. ... But luckily for particle physics, when it comes to the minuscule scale of particles, the effect of gravity is so weak as to be negligible

Answer 2

The Standard Model of particle physics is the theory describing three of the four known fundamental forces (the electromagnetic, weak, and strong interactions, and not including the gravitational force) in the universe, as well as classifying all known elementary particles.