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Google Gemini 3.1 Flash TTS

Google Gemini 3.1 Flash TTS

Text-to-speech API with natural language voice direction

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Launched April 16, 2026
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About Google Gemini 3.1 Flash TTS

Google Gemini 3.1 Flash TTS is an advanced text-to-speech API designed for developers seeking high-quality, natural-sounding voice synthesis. It supports over 70 languages and offers features like inline audio tags and multi-speaker dialogue, making it ideal for creating realistic voice agents, dubbing, and AI-driven content. Built on Google's robust AI infrastructure, Gemini 3.1 provides expressive control over speech output, enabling nuanced voice directions and natural intonations. Its integration with Vertex AI ensures scalable deployment for diverse applications, from virtual assistants to multimedia content production. This tool stands out for its emphasis on natural language voice rendering, multi-language support, and developer-friendly API design, positioning it as a versatile solution for innovative voice-based projects.

Screenshots

Google Gemini 3.1 Flash TTS screenshot 1
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Pros

  • ✓Supports over 70 languages for global reach
  • ✓Offers inline audio tags and multi-speaker dialogue for realistic speech synthesis
  • ✓Provides expressive voice control for nuanced speech output
  • ✓Seamless integration with Google Vertex AI for scalability
  • ✓Designed for developers building voice agents, dubbing, and AI content

Cons

  • ✗Limited public information on specific pricing tiers
  • ✗Potential complexity for beginners unfamiliar with API integrations
  • ✗No visible free trial or freemium options listed

Use Cases

1Creating realistic virtual assistants and voice agents
2Generating multilingual audio content for media and entertainment
3Building dubbing and voice-over tools for video production
4Developing AI-powered customer service chatbots with voice capabilities
5Enhancing accessibility by providing natural-sounding speech for visually impaired users

Pricing

Likely operates on a pay-as-you-go API pricing model, typical for Google Cloud services, with costs depending on usage volume and features utilized. Specific pricing details are not publicly available, so users should consult Google's official documentation for exact figures.

Quick Info

Category🎙️ AI Audio & Voice
Upvotes0
Comments1
Launched4/16/2026

Topics

APIArtificial IntelligenceAudio

Alternatives

•Amazon Polly
•Microsoft Azure Speech Service
•IBM Watson Text to Speech
•Descript Overdub
•Resemble AI

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