An overview of tank supplies to Ukraine right now:

Confirmed:
??14 Challenger 2
??14 Leopard 2A4
??14 Leopard 2A6 Awaiting full confirmation:
??4 Leopard 2A6
??

20-53 Leopard 2A4
??30 Abrams M1
??8 Leopard 2A4
??

14 Leopard 2A4/6 Discussing:
??18 Leopard 2A6
??6 Leopard 2A5/7

Also an unknown amount of ??

Leclerc tanks is discussed