G Augmented Major 7th, 3rd inversion (F# in the bass)
Also written as Gaug(maj7)/F#.
Notes, from the bass up
F# (bass)GBD#
The same notes as G Augmented Major 7th (F#, G, B and D#), rearranged so F# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.