  We compute the thermal free energy for all renormalizable Chern Simon
theories coupled to a single fundamental bosonic and fermionic field in the 't
Hooft large N limit. We use our results to conjecture a strong weak coupling
duality invariance for this class of theories. Our conjectured duality reduces
to Giveon Kutasov duality when restricted to {\cal N}=2 supersymmetric theories
and to an earlier conjectured bosonization duality in an appropriate decoupling
limit. Consequently the bosonization duality may be regarded as a deformation
of Giveon Kutasov duality, suggesting that it is true even at large but finite
N.
