Google Places Pricing Per Session or Per Request

I typed a place name 14 characters in length, and within console.cloud.google.com the # of requests increased by 14.

Does this mean that the sessionToken is not working correctly? I'm just playing around using the test project main.dart file.

Any idea if the result of the above is 14 x _requests_ (at $2.83/1000) or 14 x _sessions_ (at $17/1000)

My understanding was that if implemented correctly, you can type unlimited characters in an autocomplete field for one place, and just be charged for a single session (at $17/1000). Ie. 1 session per place, not per character. Not sure if I'm right on that though.