Gradium

Investor: Nvidia

Gradium, a French voice AI startup, has surpassed $100 million in its initial seed funding round with Nvidia joining as a new investor. The extension supports the company's expansion into Silicon Valley and the development of new voice AI models.Summary of transaction details:Value: $100 millionSector: DeepTech & AIAdvisor: Not disclosedKey Entities: Gradium, NvidiaLocation: France / Silicon Valley (planned)Note: The deal represents an extension of Gradium's seed round originally closed in December 2025 at $70 million. Nvidia's participation signals growing strategic interest from semiconductor leaders in voice AI technology, and the funding milestone positions Gradium to scale its real-time audio language models globally.