Google has launched Gemini 3.1 Flash TTS, a new speech generation model that the company claims sets a new quality standard by offering precise control over intonation. You can now use text tags to define speech style, tempo, emphasis, and even the 'atmosphere' of the voice, effectively giving users directorial control over the voice engine.
The model also supports multi-voice generation while maintaining the unique style of each individual voice. This capability opens doors for large-scale voiceovers, such as entire films, rather than just individual characters. Generation speed has significantly increased: compared to previous TTS versions, the first token acceleration and overall latency reduction are in the tens of percentage points. This makes Gemini 3.1 Flash TTS suitable for online scenarios that demand instant responses.
Google asserts that features like voiceovers, translations, AI podcast creation, and voice agents will 'soon reach an entirely new level.' This move appears to be a direct intensification of competition in the voice interface market. While niche players previously dominated, Google is now entering with a comprehensive solution capable of challenging their positions.
What does this mean for your business? The release of Gemini 3.1 Flash TTS raises the bar for all players in the voice technology market. For companies, it means that creating high-quality audio content and sophisticated voice agents will become more accessible and faster. Consequently, competition in this sector is only going to intensify.