It’s definitely a bit pricier than some other TTS providers. In practice, I’ve found that in-browser TTS simply doesn’t cut it for me, quality wise. I tried running modern TTS models in browser using WASM but even the smaller models take way too long and produce mediocre output.

One potential option would be use Apple CoreML to run some top of the line TTS models on iPhone directly but that obviously lacks browser support.

I’ll look into finding a cheaper TTS provider to see if there’s a way to bring this cost down