Woofun AI reports that Gradium, a Paris-based real-time voice AI startup, has finalized a $100 million seed funding round with NVIDIA as a participating investor. The capital will fund the establishment of a San Francisco office, deeper integration into the North American AI ecosystem, and accelerated recruitment of global technical talent. Spun out of the French AI lab Kyutai, Gradium specializes in ultra-low-latency real-time voice interaction models, with a founding team from Google Brain, DeepMind, and Meta.