Consider the category $\mathsf{Chow}_{\mathbb{Q}}$ of rational pure effective chow $k$-motives. The full subcategory of Artin motives (generated by (X,p,0), X smooth projective zero-dimensional, let $k$ with $char(k)=0$ for simplicity) is equivalent to the category of Galois representations (over $\mathbb{Q}$).

Is it true that the full subcategory of Artin-Tate motives (we add Tate motive $\mathbb{Q}(-1)$ and its powers) is equivalent to the category of *graded* Galois representations ?