Provided is a compound of Chemical Formula 1:






wherein:

A is a benzene ring;
X1 and X2 are each independently O or S;
Y1 to Y3 are each independently N or CH, provided that at least one of Y1 to Y3 is N;
Ar1 and Ar2 are each independently a substituted or unsubstituted: C6-αaryl or C2- 60 heteroaryl containing at least one of N, O, and S;
R1 to R3 are each independently hydrogen, deuterium, halogen, cyano, nitro, amino, or a substituted or unsubstituted: C1-60 alkyl, C3-60 cycloalkyl, C2-60 alkenyl, C6-60 aryl, or C2-60 heteroaryl containing at least one of N, O, and S; and
R∝and R5 are each independently hydrogen, deuterium, halogen, cyano, nitro, amino, or a substituted or unsubstituted: C1-60 alkyl, C3-αcycloalkyl, C2-60 alkenyl, C6-60 aryl, or C2-60 heteroaryl containing at least one of N, O, and S,


and an organic light emitting device including the same.