How much did Elon Musk Starship cost?

I'm curious to know, could you elaborate on the cost of Elon Musk's Starship project? Given the ambitious nature of the endeavor and the cutting-edge technology involved, I'm sure the expenses must be substantial. Is there any public information available regarding the estimated budget or the actual cost incurred so far? It would be fascinating to gain insight into the financial aspect of this groundbreaking space exploration venture.