I believe Intel has a model in the sense of model checking or symbolic execution as well as virtual simulations. Not sure what you mean by "golden model", but I

I believe Intel has a model in the sense of model checking or symbolic execution as well as virtual simulations. Not sure what you mean by "golden model", but I don't believe they have a formal model to the level of compcert or related models in Coq/Agda/Isabelle.