Gemini TTS is a text-to-speech platform that generates natural, emotion-rich audio from written text, powered by Google's Gemini 3.1 Flash TTS model.
What is Gemini TTS?
Gemini TTS is an AI text-to-speech service built on Google's Gemini 3.1 Flash architecture (gemini-3.1-flash-tts-preview). It takes plain text as input and produces broadcast-quality MP3 or WAV audio output. The platform supports over 70 languages, 30+ voice profiles, and 200+ expressive audio tags that let you control vocal nuance — from emotion and pacing to non-verbal sounds like laughter and whispers.
Key Features
- 200+ Expressive Audio Tags — Control every vocal nuance by inserting tags like
[excitement], [whispers], [slow], [laughs], and [gasp] directly into your script. No separate audio editing required.
- 70+ Languages Supported — Generate speech in over 70 languages with consistent quality. Accent and pacing controls work across all languages, and audio tags can be written in English regardless of the output language.
- Multi-Speaker Dialogue — Create conversations between multiple characters in a single generation by labeling each speaker with a unique Audio Profile. Designed for podcasts, games, and interactive fiction.
- 30+ Built-in Voice Profiles — Choose from distinct prebuilt voices with different tonal characteristics (e.g., "Fenrir" with Excitable, Lower middle pitch). Fine-tune pace, tone, and accent.
- Style Prompt and Temperature Control — Adjust the overall delivery style via a text prompt and set a creativity temperature (default 1.0) to vary how the model interprets expressive tags.
- Free Tier with Generation Credits — Start without a credit card; get free credits to test and generate audio. No attribution required for downloaded files.
Who is it for?
- Audiobook producers and storytellers — Generate multi-speaker narration with expressive pacing and emotional depth, using tags like
[slow] and [whispers] to match the narrative tone.
- Game developers — Create dynamic NPC voices with distinct emotional profiles, without hiring voice actors for every character.
- Content creators and video producers — Produce voiceovers for YouTube, ads, explainer videos, and social content at scale in any supported language.
- Enterprise teams needing multilingual localization — Localize audio into 70+ languages while maintaining precise emotional tone and pacing, without re-recording from scratch.
What can you do with Gemini TTS?
- Conversational AI agents: Power chatbots and voice assistants with natural, expressive speech output that adapts to user interactions.
- Video voiceovers: Generate professional-sounding narration for explainer videos, commercials, and social media clips — in minutes, in any language.
- Accessibility and inclusion: Generate natural-sounding audio descriptions for apps, websites, and media to make digital content accessible to visually impaired users.
How does Gemini TTS work?
- Create a free account — Sign up with no credit card required to get instant access to the Gemini TTS Studio with free generation credits.
- Enter your text and customize — Type or paste your script. Choose a voice (e.g., "Fenrir"), select the language, and add expressive audio tags to shape the delivery.
- Generate and download — Click "Generate & Play" to produce audio in seconds. Download as MP3 or WAV and use the audio anywhere — no attribution required.
Pricing
Gemini TTS operates on a freemium model. Free generation credits are available upon signup, with no credit card required. Paid tiers are offered for higher usage volumes (specific pricing not listed on the page).
FAQ
Is Gemini TTS free to use?
Yes, you can start with a free account and get instant generation credits without a credit card. The free tier allows you to test the full feature set before committing to a paid plan.
