"Is my AI startup fucked now that GPT-6 Astra is here?" what do you think idiot? I hope you can break your lease and get out of San Francisco because it is FUCKING OVER FOR YOU. You have no moat, no swag, probably no customers, and no product now that Astra can one shot whatever shit you were working on. B2B? I promise you Astra can one shot that. Consumer product? Why were you building a consumer product anyways ewww what the fuck? But yeah definitely over in that case as well. Whatever Astra can't do, if there is such a thing, Fable probably can so you are getting hit with a double clothesline WWE style. If it was me I'd be a total puddle hiding in my closet crying calling my mom to come pick me up from SF and take me back to the suburbs from which I came. It's also possible that Astra helps you grow your product and business, though, so I don't want to overreact or anything.