Gradium develops models of audio language aimed at enabling natural, expressive, and very low-latency voice interactions at scale. Since its launch in December, the company has expanded capabilities across speech synthesis, speech recognition, translation, and developer tools, releasing a new real-time text-to-speech flagship model. Its product suite includes Gradium Translate (low-latency speech-to-speech translation), Phonon (an embedded text-to-speech model for edge devices), and GradBot, an open-source framework for building voice agents. Gradium has also supported the Invincible Voice project to help people who can no longer speak regain vocal interaction. The company plans to use recent funding to accelerate its roadmap, scale product development, and deepen its international presence with a new San Francisco office.

Total raised

$100M

Funding rounds

2

Latest round

Seed

Latest activity

Jul 2026