Project AURIONAI Use-Cases Research & Innovation
speech synthesis

Zonos v0.1

Open-weight text-to-speech model with voice cloning from a few seconds of reference audio.

ZyphraZyphra
Zyphra
Levelmodel
Classspeech synthesis
Parameters1.65B
Contextnot in the notes
Released6 Feb 2025
Opennessopen weights permissive
Runs onnot in the notes
Statusactive

R&D Topics

Large-scale zero-shot text-to-speechproduced by

Identity

Developer
Zyphra
Family
not in the notes
Released
6 Feb 2025 sourcesregistry date
Weights published
–
Record checked
12 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.

Architecture and Size

Architecture
hybrid
Total parameters
1.65B sources
Active parameters
–
Checkpoint parameters
–
Note
Hybrid (1.65B) and transformer (1.62B) versions.
Context length
not in the notes
Input
text, audio
Output
audio
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).

Openness and Access

Openness
open weights permissive
Licence
Apache License 2.0 sources
Access routes
open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.

Deployment

Runs on
not in the notes
Footprint
not in the notes
Runtimes
not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.

Indonesia

Indonesian support
not stated
Regional languages
not in the notes
Jakarta hosting
unknown
Languages
Multilingual (200k hours of training speech)
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.

Benchmark Results

The notes record no benchmark result for this model.

Lineage

The notes record no lineage for this model.

Industry Use Cases

No industry use case links this model.

Sources

  1. huggingface.co/Zyphra/Zonos-v0.1-hybrid https://huggingface.co/Zyphra/Zonos-v0.1-hybrid
  2. github.com/Zyphra/Zonos https://github.com/Zyphra/Zonos
  3. zyphra.com/post/beta-release-of-zonos-v0-1 https://www.zyphra.com/post/beta-release-of-zonos-v0-1

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Zonos v0.1", https://aurion.semai.id/models/zyphra-zonos-v0-1/, records of October 2026.