Final mass versus accretion rate for 10⁻⁶ M_⊙ yr⁻¹ to 10³ M_⊙ yr⁻¹. The gold line is for zero metallicity models, the silver line is for Z = 10⁻⁶ Z_⊙ and the single dot at 1 M_⊙ yr⁻¹ is the solar metallicity model. The green bar marks the final mass range for which collapse occurs after core Si burning and the red bar is the mass range for which the GRI triggers collapse during central H burning. The vertical pair instability strip spans 150–250 M_⊙ and is for the non accreting models while 7–150 M_⊙ progenitors produce neutron stars or stellar-mass BHs. The oval shapes with numbers correspond to the central mass fraction of hydrogen at the time GRI is triggered.