Kokoro
the self-hoster's default: tiny, cpu-capable, truly permissive
the best cost/quality self-host for high-volume narration: 82m params, runs on cpu, and — rare in open tts — both code and weights are apache-2.0, so you can actually ship it. no cloning, and commit cadence has slowed.
kokoro is an 82-million-parameter model small enough to run on cpu, with several english and some multilingual voices, and the thing that sets it apart from the higher-quality open models is the licence: both the code and the kokoro-82m weights are apache-2.0, so it's genuinely commercial-safe. self-host it for effectively nothing, or use it on fal.ai at $0.02 per 1k characters.
it uses fixed voice packs, so there's no zero-shot cloning, and its expressiveness sits below the big proprietary models. its repo commit cadence has slowed (last substantive push in 2025), worth watching for staleness. for high-volume, non-cloning narration where cost matters most, it's the pick.
the description above is ours, condensed from the ranking. pricing moves — check it on the vendor's own page before you rely on it.
- category
- ai text-to-speech models
- pricing
- free — Apache-2.0 (weights included)
- website
- github.com
the best cost/quality self-host for high-volume narration: 82m params, runs on cpu, and — rare in open tts — both code and weights are apache-2.0, so you can actually ship it. no cloning, and commit cadence has slowed.
we researched this category against vendors' own pricing pages and licence files. that is where this line comes from — not from the vendor, and not from anything they paid for.