Gradium Launches Voice Design: Write a Prompt, Get a Brand New Synthetic Voice in Seconds
Gradium, a Kyutai spinout, launched Voice Design, generating custom synthetic voices from text descriptions in seconds across five languages.
Gradium, a Paris-based voice AI company spun out of Kyutai, launched Voice Design, which generates new synthetic voices from 1-500 character text descriptions in seconds without needing reference audio or speaker consent. The feature is live in the Gradium API and Studio, free on every plan including the free tier, and kept voices run on the standard streaming TTS endpoint at the same latency as catalog voices. Vendor-run blind pairwise listening tests across 7,627 comparisons report a 72.6% win rate, 13.6 points ahead of ElevenLabs at 59.0%, placing first in all five tested languages, with the largest margins on regional accents such as Quebecois French (97%).
- Returns 1-5 candidate voices per prompt in 3-5 seconds; prompts up to 500 characters in five languages.
- Claims 72.6% blind win rate versus ElevenLabs (59.0%), Inworld, Fish Audio, and MiniMax; benchmarks are vendor-run.
- Kept voices use one custom voice slot shared with clones; unconverted candidates are deleted after 30 days.
- Free tier allows 5 kept voices; paid plans allow 1,000.
- Vendors
- Gradium
- Products
- Voice DesignGradium API
- Organizations
- KyutaiElevenLabsInworldFish AudioMiniMax
- Countries
- France
- AI models
- ElevenLabs eleven_ttv_v3
From the original article
3 min read at marktechpost.com
Voice agent teams keep hitting the same wall. The catalog holds 400 voices and the brief asks for the one that is not in it: a Quebecoise receptionist for a Montreal dealership, a narrator in his sixties with lecture hall authority. Briefs outnumber any catalog, and cloning closes the gap one speaker at a time, […]
By Michal Sutter · marktechpost.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.