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Here is my task:

Calculate voltage gain Av and current gain Ai for circuit on scheme .

I don't know how to calculate Ai. I got that Av=-gm*rce*Rc*Rl/(Rc*Rl+rce*(Rc+Rl)) and it matches with solution given in my textbook.

I know that Ai=Iout/Iin but which current is Iout? Ai should be gm*rce/((rce+Rc*Rl/(Rc+Rl))*(1/R1+1/R2+1/rpi)).