I'd be surprised to see a GT below $100K. And I'm guessing a fully-optioned one will land between $130-140K . . . or maybe even more with pricey, largely cosmetic options such as the Stealth package and 23" wheels.
With 3-chamber air suspension, rear-wheel steering (at some point), three rows of seating, more glass area, etc., there's going to be a good bit of extra hardware on the Gravity compared to the Air.
While I'm sure Lucid will strive to make versions available at as low a price point as possible, I don't think that means they are going to walk away from the more lucrative higher price points for those buyers able and willing -- even wanting -- to shop there. Where I live, there are just too many Range Rovers, Cayennes, GLS's, Bentaygas -- and even a few Urus's and Cullinans -- roving the roadways to convince me Lucid won't find customers for a pricey SUV as well as a more affordable one.