AudioStack, a pioneering AI audio production platform, is significantly enhancing its capabilities by integrating Gradium's diverse voice models into its system. This partnership, announced on August 19, 2026, marks a strategic advancement, enabling AudioStack to expand its offering with higher-quality regional accents and voices that cater to specific market needs. The integration comes at a time when AudioStack's voice catalog already exceeds 1,700 voices, reflecting its robust growth trajectory since its inception in 2019. According to Slator, this move fits into AudioStack’s broader strategy of leveraging partnerships to create a more versatile and comprehensive audio production platform.

The collaboration with Gradium enriches AudioStack's catalog with voices capable of delivering regionally nuanced and linguistically rich audio content. Alexis van de Wyer, CEO of AudioStack, emphasized his company’s admiration for Gradium’s ability to provide an extensive range of accents and linguistic nuances. Such an offering is instrumental in supporting customers across various global markets, particularly in areas such as Australia and French Canada. This capability is essential for advertisers and content creators who seek to engage audiences with tailored messaging that feels locally relevant and culturally resonant. As Neil Zeghidour, CEO of Gradium, notes, the partnership facilitates the seamless integration of geographically appropriate voices into production pipelines, helping brands communicate more effectively with their target demographics.

Both companies have demonstrated impressive growth and strategic foresight in their fields. AudioStack raised its profile in the industry through a GBP 1m seed round in 2021, followed by a USD 3.1m pre-Series A round in 2024. Meanwhile, Gradium, founded in September 2025, has swiftly amassed USD 100m in seed funding by July 2026. This financial momentum underscores the growing recognition of AI's transformative potential in the audio production landscape. The integration of Gradium’s capabilities into AudioStack’s platform exemplifies a synergy that not only broadens AudioStack’s service offerings but also enhances the efficacy of Gradium’s voice models in diverse, real-world applications.

In summary, the partnership between AudioStack and Gradium underscores a pivotal evolution in AI-driven audio production. As highlighted by the recent discussion at SlatorCon London, where AudioStack’s infrastructure capabilities were showcased, this collaboration signifies a forward-thinking approach to blending robust technological frameworks with innovative audio solutions. This strategic alliance promises to set a new benchmark for quality and customization in AI audio services, advancing how businesses and creators utilize voice technology to forge deeper connections with their audiences worldwide.