Functions are sorted based on the optimizer's performance relative to other algorithms. The rank number on each image (e.g. #1) indicates its standing on that specific function compared to all other optimizers tested.

#4

Langermann 2

#8

Ackley

#8

GradientLabyrinth

#11

Lévy 13

#12

QuantumWell

#29

NeuralCanyon

#29

EggHolder

#29

Weierstrass

#41

Styblinski-Tang

#42

Gramacy & Lee 2D

#50

Rastrigin

#55

Goldstein-Price

#65

Beale

#71

Langermann

#74

Rosenbrock

#81

Griewank