How high does speech have to be in order to get past Faralda using the speech bypass? Googe holds no answers -__-

That's an awesome question! I never succeeded. In couple of cases my speech was pretty high, 60 or 70. I'm going to test this.

Didn't work at level 90 speech.

how does the speech mechanic in skyrim even work

is it like FO3 or FO:NV?

You might need that persuasion perk.

I did not succeed at 99 skill but succeeded at 100. I didn't have the persuasion perk.