The LongShot Chrome extension is an extension of your main app. So, the credits you consume by generating content using the LongShot Chrome extension are taken from your account.
If you’re on the Basic plan, you get access to 10 daily credits (equivalent to 500+ words).
For the Pro plan, you get access to 1000 monthly credits (~50k+ words).
And finally, for the Team plan, you get access to 3000 monthly credits (~150K words).