CVXPY
Minimize
  Sum(abs(X), None, False)
Subject To
Bounds
 0.0 <= X
End
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AFTER COMPILATION
Minimize
  x_0 + x_1
Subject To
 R0: - x_0 + x_2 <= 0
 R1: - x_1 + x_3 <= 0
 R2: - x_0 - x_2 <= 0
 R3: - x_1 - x_3 <= 0
Bounds
 x_0 free
 x_1 free
End
----------------------------------------
GUROBI
Minimize
  0 X[0] + 0 X[1] + abs_1 + abs_2
Subject To
Bounds
General Constraints
 GC0: abs_1 = ABS ( X[0] )
 GC1: abs_2 = ABS ( X[1] )
End