Bosonization duality is well-known in 2d free theories for
boson/fermion and interacting theories such as sine-Gordon/Massive
Thiring models. A similar kind of duality exchanging boson and fermion
has recently been found in 3d called "3d bosonization". This duality
is realized in Chern-Simons vector models, which also becomes a
soluble system in the large N limit. Pieces of strong evidence has
been provided without relying on supersymmetry. In this talk I will
talk about my recent works related to these developments.