Azure has a half-million character free tier for their top-quality "Neural" voices, which I find somewhat better than Google Cloud's top tier of voices ("Studio

Azure has a half-million character free tier for their top-quality "Neural" voices, which I find somewhat better than Google Cloud's top tier of voices ("Studio" voices). For personal use you can probably just use Azure for free too! If you're running a business you'll probably burn through the free tiers of either of them, and Google is wayyy more expensive — roughly $8/hr for Studio voices using the 50k characters per hour estimate. The "Neural2" voices are competitively priced with OpenAI and Azure, but are pretty low quality compared to even Azure (and much worse than OpenAI).