It’s more a ballpark since exact numbers vary and OpenAI could be employing shenanigans to cut costs, but in comparison, Veo 3 which has similar quality 720p video costs $0.40/second for the user, and Sora’s videos are 10 seconds each. Although Veo 3 could cost more or less to Google than what is charged to the user.

I suspect OpenAI’s costs to be higher if anything since Google’s infra is more cost-efficient.