Why can't I use some voices from the Voice Library?

Some voices in the Voice Library are only available to users with a paid subscription. If you're on the free plan and you try to use one of these voices, you'll see the message: "This voice is not available for free users."

This is because these voices have a credit multiplier in place. Voices with credit multipliers are not available on the free plan, but they will become available if you upgrade to a paid subscription.

When you use a voice with a credit multiplier, the credit usage will be adjusted accordingly. For example, if a voice has a 2x multiplier, generating audio will cost twice as many credits as a voice on the standard rate.

For more details on custom rates and credit multipliers, you can refer to this article: What are custom rates and credit multipliers?