Piper
Piper · local · Text to speech · local/piper
Text to speech on your Mac offline MIT
Offline neural voices, instant, tiny. Clearly better than the system voice and still free.
What it costs
Free to run: it downloads once and works on the machine you already own. It costs you disk, memory and battery instead.
How it performs
A blank cell means the row does not state it, not that the answer is no. Word-error rates come from one independent harness, so they compare with each other only.
Using it
Runs on your own machine. It downloads once and then works offline: no key, no account, no per-minute cost.
These are not AI-token prices, and these engines do not answer at the hosted endpoints — 00 speaks to them from your machine, with your credentials. The speech models that do run on AI tokens are one click away on the media page.
Pick it per agent in the app. Get 00.
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