  Considering a GRB event as a relativistic flux where the relativistic beam
makes radiation become anisotropic, we are able to show that the required
intrinsic energy associated with these events is significantly smaller than
those values commonly presented in literature. Our results show energy values
around $10^{44}$ ergs for Lorentz $\Gamma$ factor $\sim 10$ and around
$10^{38}$ ergs for $\Gamma \sim 300$, values which are more compatible with
energies involved in AGN events rather than those related to the formation of
stellar black holes and hypernovas.
