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Gradium Open-Sources Phonon, a 31M-Parameter On-Device TTS Model Under Apache 2.0

MarkTechPostThursday, October 22, 2026 at 4:56 PM

RedScroll Brief

Gradium Open-Sources Phonon, a 31M-Parameter On-Device TTS Model Under Apache 2.0
Image via MarkTechPost

Gradium has open-sourced Phonon, a family of on-device text-to-speech models. The English Phonon 31m ships under Apache 2.

RedScroll Signal

Impact
High
Category
Ai
Market relevance
Moderate
Why it matters
AI developments move capital, regulation, and competitive advantage across the tech stack. Gradium has open-sourced Phonon, a family of on-device text-to-speech models. The English Phonon 31m ships under Apache 2. Secondary effects may show up in markets and supply chains linked to Gradium Open and Sources Phonon.
Read original source → MARKTECHPOSTEdition 2026-10-22

Desk copy

RedScroll Briefing

Extractive editorial brief — not a reprint of the original

What happened

Gradium has open-sourced Phonon, a family of on-device text-to-speech models. The English Phonon 31m ships under Apache 2.

Why it matters

AI developments move capital, regulation, and competitive advantage across the tech stack.

Background

MarkTechPost reported on this under ai. RedScroll surfaces the signal with an extractive brief — not a reprint of the original article. Read the source for full reporting.

Timeline

  1. MarkTechPost published: Gradium Open-Sources Phonon, a 31M-Parameter On-Device TTS Model Under Apache 2.0

  2. Story is in today’s RedScroll edition. Follow the original source for updates.

Economic impact

Secondary effects may show up in markets and supply chains linked to Gradium Open and Sources Phonon.

Related stories

Source

MarkTechPost

Original reporting by MarkTechPost. RedScroll provides an extractive briefing only.