Note that SpaceX has received ~$10 billion in total investment since inception, and receives about $2b in revenue annually from launches.
We don't have insight into SpaceX finances, but this should give you an upper bound on how much money SpaceX is spending on something.
This $10 billion in total investment and annual revenue has financed the development of Falcon 9, Dragon, Dragon 2 and Crew Dragon, Starship, launch pads at Vandenburg, Boca Chica, and two at the Cape, Merlin, Raptor, Starlink development, thousands of Starlink satellites, and all the associated ground infrastructure, recovery and recovery ships, and everything else.
While we don't have any hard numbers on what the Starship development program has cost thus far, it's not likely to be in the billions.
We don't have insight into SpaceX finances, but this should give you an upper bound on how much money SpaceX is spending on something.
This $10 billion in total investment and annual revenue has financed the development of Falcon 9, Dragon, Dragon 2 and Crew Dragon, Starship, launch pads at Vandenburg, Boca Chica, and two at the Cape, Merlin, Raptor, Starlink development, thousands of Starlink satellites, and all the associated ground infrastructure, recovery and recovery ships, and everything else.
While we don't have any hard numbers on what the Starship development program has cost thus far, it's not likely to be in the billions.