Title: Models of Configuration Spaces Abstract: We consider the configuration space of k points in a closed manifold M, F(M,k). When M is a nonsingular projective complex algebraic variety Fulton-MacPherson and Kriz determined the rational homotopy type of F(M,k) out of the rational homotopy type of M. For general closed manifolds it is not hard to determine the rational homotopy type of F(M,2) when M is 2-connected. In this talk we show how the rational homotopy type of F(M,3) is determined by that of M, when M is 4-connected. This is all joint work with Pascal Lambrechts.