Does Sydecar have an equity model built into its platform, similar to AngelList's AUM model ($5k + 0.5% of the value of the SPV)?

Not today. Never say never, but I'd be surprised if we ever turn on a model where we participate in the upside and act like a marketplace. The reason for that is our value prop is all about being there for our sponsor customers and not contacting or utilizing those LP relationships for any reason other than to promote what they want to promote.