There certainly are, but it depends on what the object is?
For example, I have used the `flared disk' model of Dullemond Dominik & Natta (2001) to model the SED of hot dust around a sgB[e] star
where at optical wavelengths emission is dominated by a ~25kK stellar source but at 10 microns it is due to hot dust (~1000K) that forms in a equatorial disk around the central B[e] star and a cold dust component (~100K) that dominates the long-wavelength emission. CMFGEN will also model the SED for hot stars, LBVs, Wolf-Rayets etc., but the underlying physical conditions are very different, while a QSO would be very different again - and it's really the geometry, distribution and composition of material that affect the SED of an object, so different objects require different models. Short of the basic approach of fitting one or more Black Body models, I don't think there's a one-size-fits-all approach.