HeyGen Voice and Voice Turbo are now on NanoGPT.
Choose from 24 voices or clone a speaker from a reference recording. 39 languages, adjustable expressiveness and 44.1 kHz WAV output, with up to 5,000 characters per request.
https://nano-gpt.com/studio/audio?audioMode=tts&model=heygen%2Fheygen-voice%2Fturbo