Does set logit_bias to 100 lead the model choice between 'A' and 'B' essentially random?

[Sophia Williams]

logit_bias={
'32': 100, # 'A' token
'33': 100, # 'B' token
},
I asked GPT4 this issue, the following is its answer:

[mshumer]

Not random! It essentially just excludes any other tokens.

[Phq-art]

Unlike the explanation in the gpt-4 response, I think as @mshumer already said it just limits the output to either 'A' or 'B'.