Gemini 3.1 Flash TTS
Gemini 3.1 Flash TTS from Google is a next-generation text-to-speech model offering best-in-class controllability and expressiveness. It introduces 200+ audio tags that let you steer vocal style, pace, and delivery using natural language commands embedded directly in the text input. Supporting 70+ languages with native multi-speaker dialogue, it achieved an Elo score of 1,211 on the Artificial Analysis TTS leaderboard. All generated audio is watermarked with SynthID for responsible AI identification.
Why use Gemini 3.1 Flash TTS for audio?
Natural voice generation
Gemini 3.1 Flash TTS produces expressive, high-quality audio suitable for character dialogue, narration, and voiceover work.
Flexible content types
Supports a range of use cases from in-game dialogue and cinematics to marketing narration and social media content.
Fast iteration
Generate and refine audio content quickly, enabling rapid prototyping of character voices and sound design.
Character voiceover and dialogue production
Generate expressive character voices for in-game dialogue, cutscenes, and interactive narratives. Iterate on tone and delivery rapidly.
Marketing narration and promotional audio
Create professional voiceovers for trailers, app store videos, and social media content without booking voice talent.
Sound design exploration and prototyping
Quickly prototype sound effects, ambient audio, and musical elements to test creative directions early in production.