Google Unveils Gemini 3.1 Flash TTS for Expressive AI Voices

Google unveiled its next-generation AI voice model, Gemini 3.1 Flash TTS, with enhanced expressive capabilities that allow precise control over tone, emotion, and delivery in synthesized speech. The model supports 70 languages and is designed for enterprise applications, marking a significant step in the evolution of AI-driven voice technology. According to reports from multiple Korean tech outlets including 지디넷코리아, 네이트, 테크데일리, 인공지능신문, and 월간 믹싱, Google officially introduced Gemini 3.1 Flash TTS as part of its ongoing push into AI-powered audio synthesis. The technology enables users to adjust vocal expression much like directing a performance—controlling not just what is said, but how it is said, including nuances in emotion, pacing, and emphasis. This advancement positions the model as a tool for businesses seeking scalable, customizable voice solutions across global markets. By supporting a broad range of languages, Gemini 3.1 Flash TTS aims to serve diverse user bases although maintaining natural-sounding output that closely mimics human speech patterns. The release underscores Google’s continued investment in multimodal AI capabilities under the Gemini family, extending beyond text and image processing into sophisticated audio generation. As AI voice technology matures, such tools are expected to influence industries ranging from customer service and accessibility to content creation and digital entertainment—though Google has not disclosed specific use cases or pricing details for the model at this time.