I have ridden a Ti gravel bike quite a lot and ride a carbon one now. Especially in gravel where horizontal stiffness is key and vertical compliance need is even greater, Ti just cannot outperform a good carbon frame. With carbon an astute frame designer can use different carbon, thichness, weave directions etc. to get completely different performance characteristics of the frame in different directions. With any metal fabricated frame, the options to do this are really limited; you basically have nearly the same flex and stiffness of a tube in either axis. About all you can do is change the tube shape a bit by ovalizing or hydroforming. Hydroforming is limited to Aluminum though. About the only advantage Ti has over carbon for gravel is it will last forever (and it looks better!). That is a nice thing to have admittedly, but for me that alone is not enough reason to shell out the $ for a Ti gravel bike. Probably not what you want to hear if your heart is set on the allure of a Ti frame, but hey, if you post for opinions, you may get some you do not like...