Shane Bieber has thrown 4,199 pitches that have been tracked by the PITCHf/x system between 2018 and 2019, all of them occuring in the MLB Regular Season. In 2019, he has relied primarily on his Fourseam Fastball (93mph) and Slider (85mph), also mixing in a Curve (83mph) and Change (88mph). He also rarely throws a Sinker (94mph).
Basic description of 2019 pitches compared to other RHP:
His fourseam fastball has essentially average velo. His slider generates a very high amount of groundballs compared to other pitchers' sliders, generates more whiffs/swing compared to other pitchers' sliders and has primarily 12-6 movement. His curve generates an extremely high number of swings & misses compared to other pitchers' curves, is much harder than usual, has a sharp downward bite and has primarily 12-6 movement. His change generates a very high amount of groundballs compared to other pitchers' changeups, is much firmer than usual and has slight armside fade. His sinker (take this with a grain of salt because he's only thrown 1 of them in 2019) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers and has slightly above average velo.