@Philipp
I'm glad to hear about your interest in using custom voices with Elevenlabs on the VAPI platform! As of my last update, there may have been developments regarding the use of custom voices with the newer, faster versions like 11 labs 2.5 Turbo. For the most accurate and up-to-date information, I recommend checking the latest documentation on the Vapi website or reaching out to the support team directly. They will be able to provide you with the latest updates on custom voice availability and any potential workarounds for using them with the new engine.
If you need assistance with anything else or have more questions, feel free to ask!