Details of Starship commercial launch costs leak via 10-K SEC filing: $90M for a 100-150 tonne payload (compared to $74M for a 22 tonne payload on Falcon 9). Note that SpaceX will expect to turn a profit on this price structure in 2029:
https://www.fool.com/investing/2026/03/21/how-much-will-a-spacex-starship-launch-cost/