Zonos is listed under AI Voice & Speech, in the Content & Media Generation category on Flocci AI Tools. Apache-2.0 TTS with emotion, pitch and speaking-rate conditioning. It is free, with no paid plan attached, and it lives at github.com.
Zonos is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 399 entries on Flocci AI Tools with no upgrade path built in.
Zonos does 3 things the catalog singles out: Apache-2.0 tts with emotion, pitch and speaking-rate conditioning; voice cloning from a short reference clip; multilingual output; free playground on zyphra site.
Chatterbox (Resemble AI) is the closest free alternative: it sits in the same AI Voice & Speech sub-category and is free. Copilot Audio Expressions, CosyVoice and F5-TTS also start free. The full list is on the alternatives page.
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