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Did Zyphra release ZONOS3-Mini as an open-source TTS model with 100 million active parameters?

ReportedLast checked
ZyphraFirst seen

Verdict

MarkTechPost reports an 800 million-parameter model with 100 million active parameters. Performance figures are Zyphra's own tests, not independent verification, and the item does not establish support for 35 languages.

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What we are checking

Zyphra released ZONOS3-Mini, an Apache 2.0 TTS model with 800 million total parameters and 100 million active parameters
Original source
MarkTechPost
Nov 10, 2026
Claim deadline
No stated deadline
Review due
Dec 12, 2026 ET

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Timeline

Reported

MarkTechPost reports an 800 million-parameter model with 100 million active parameters. Performance figures are Zyphra's own tests, not independent verification, and the item does not establish support for 35 languages.

Source: MarkTechPost
Questions
Are Zyphra ZONOS3-Mini open-source TTS out yet?
No. Zyphra has not announced them as of Nov 12.
When are Zyphra ZONOS3-Mini open-source TTS expected?
No official release date as of Nov 12.
How we label rumors
Unconfirmed
Circulating with at least one public source we can link to; no official confirmation.
Reported
Reported by a news outlet; not confirmed by the company.
Confirmed
Confirmed by the company or another official source.
Debunked
Denied by the company, retracted by the original source, or shown to be false by the evidence.

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