Gradium builds audio models for real-time voice applications. Through an API it offers text-to-speech, speech-to-text, speech-to-speech translation, voice cloning and on-device TTS in English, French, German, Spanish and Portuguese. Researchers from the Kyutai lab founded it in 2025, and Neil Zeghidour is CEO. Renault is a named customer.
How Gradium compares with its closest alternatives
4 of the 5 closest alternatives have a free plan, as Gradium does. 4 of the 5 offer an API, as Gradium does. Gradium offers a web app. Of the 4 alternatives with platforms on record, 2 offer a web app. Gradium was founded in 2025; the alternatives were founded between 2016 and 2021, 2 of them earlier. Gradium is based in Paris, France; none of the 2 alternatives with a known headquarters is in France. They are in India and the United States.
Market position · Voice
How Gradium compares in Voice
Gradium has high opportunity and sits in the top third of 306 live Voice tools on FalcoScan. Across Voice, the average opportunity score is 66.1 and the average saturation score 41.2. FalcoScan rates Gradium's own market position as contested. 92 of the 306 operating Voice tools have hot momentum, and FalcoScan has recorded 11 shutdowns in the category.
Gradium has a free tier, with paid plans from $13 a month.
What are the best alternatives to Gradium?
The closest alternatives to Gradium that are still running, matched on the AI capabilities, uses and audience they share, are Gnani.ai, Rylo, Insanely Fast Whisper, TTS WebUI, and WhisperS2T.
Is Gradium still running?
Yes. As of 2 November 2026, FalcoScan lists Gradium as operating at gradium.ai.
Where is Gradium based?
Gradium is headquartered in Paris, France.
Does Gradium have an API?
Yes. Gradium offers an API.
Who is Gradium for?
Gradium is built for developers and enterprises.
How do I sign in to Gradium?
Sign in on Gradium's own website, gradium.ai. FalcoScan reviews Gradium but does not run its accounts, so logins, passwords and billing are handled by Gradium directly.