Android 13 Beta 1 is Officially Released For Google Pixel Devices.
Google already released Android 13 Developer Previews in Previous months. Android 13 is a small incremental upgrade to Android 12.1 . So, Google according to the Developer Preview and Beta Schedule has released Beta 1 today .
Android 13 codename is TIRAMISU.
Build number: TB1.220310.029
Factory Images and OTA – link