OpenSea's Service Fees
OpenSea's model is simple - we take 2.5% of every transaction that happens on OpenSea. That's it. Users and partners can create NFTs for free at any time.
Creators can set a collection-level fee of up to 10%. This means creators can earn revenue every time their NFT is sold using OpenSea. The creator can modify this fee percentage at any time. To learn how to set your creator earnings, you can read through our help center article How do creator earnings work on OpenSea?
If you're creating a collection on behalf of someone or as part of a group, please note that OpenSea doesn't support contract level splits at this time.
You'll need to handle splitting revenue between parties on your side once received. You may consider using third-party services like disperse.app that assist with sending multiple payments in one transaction.