Gemini 3.8 Flash TTS
Gemini 3.8 Flash TTS brings scripted copy to life — direct emotion turn by turn, cast two speakers and localize into 130 languages.
Support
Pro AI Tools
Explore elite tools including the Suno AI Music Generator.
MiniMax H3
MiniMax H3 AI Video Generator
Seedance 2.5
The Future of AI Video Is Here.
Seedance 2.0
The Future of AI Video Is Here.
Veo3.1
Create Stunning Videos with Veo3.1
FLUX 3 Video Generator
Kling 3.0
Next-Gen AI Video Generator
Grok Video Generator
Create Videos from Text or Images with AI
MiniMax H3 video generator
MiniMax H3 AI Video Generator
Inside Gemini 3.8 Flash TTS: A New Class of Synthetic Speech
The 2026 Gemini TTS rollout pairs an expressive flagship model with a leaner, budget-friendly tier built for large audio batches.
- Two Tiers, One ReleaseFlash TTS handles the artistic, detail-rich work, while Flash-Lite TTS keeps costs low for high-volume speech jobs.
- You Direct the Delivery, Not a PresetPer-turn style notes, structured metadata blocks and inline vocal events shape tone, pacing, feeling and accent.
- Voice Design Plus Consent-Based CloningSketch a voice in plain language, or recreate a real speaker using a reference clip and a matching consent recording.
Getting Clean Results from Gemini 3.8 Flash TTS
Four habits that keep your transcript readable and let the performance metadata do the acting.
What Gemini 3.8 Flash TTS Can Actually Do
Everything from per-turn acting cues to 130-language coverage, explained for the flagship model in Google's speech lineup.
Hands-On Performance Control
Per-turn style cues plus inline laughs, sighs, coughs, breaths and pauses feel more like coaching a voice actor than picking a preset.
Design Voices with Plain Language
Describe age, personality, accent, vocal texture and role in a prompt, supported by 2,000+ production voices through the Voices endpoint.
Cloning That Requires Consent
You need a clean reference recording and a matching consent clip from the same adult speaker, plus SynthID watermarking and C2PA credentials.
Built for Two-Voice Dialogue
Scripts carry the whole exchange for podcasts, lessons, product demos and game scenes, with no manual line stitching.
Stable Voice Across Long Recordings
Google reports consistent identity, timbre, volume and room tone through multi-minute narration and extended dialogue.
130 Languages with Regional Accents
Flash TTS spans 130 languages versus Flash-Lite's 101, including regional accents, minority dialects and IPA pronunciation overrides.
Gemini 3.8 Flash TTS Questions, Answered
Quick answers about pricing, picking a model tier, benchmark scores and the safety rules behind Gemini 3.8 Flash TTS.
What does Gemini 3.8 Flash TTS cost per minute of audio?
Roughly 1.35 cents per audio minute, based on launch pricing of $0.50 for input and $9 for output per million tokens.
Which tier should I pick — Flash TTS or Flash-Lite TTS?
Choose Flash TTS when acting nuance and long-form audio matter; choose Flash-Lite TTS for bulk jobs and lower latency.
How does it stack up against rival voice models?
Google cites a 71.4 score on Hume's Voice Design Benchmark, and Voice Arena ranks it second with 1,260 Elo.
What changed from Gemini 3.1 Flash TTS Preview?
Flash-Lite TTS takes over from the 3.1 preview and drops audio output pricing from $20 to $6 per million tokens.
Can I clone a voice, and what guardrails are in place?
Cloning requires a reference clip along with a matching consent recording from that same adult speaker.
Why is the model reading my stage directions aloud?
Your input is treated as a verbatim transcript, so shift long-lasting directions into the speech metadata instead.
Hear Gemini 3.8 Flash TTS Read Your Script
Try both tiers inside the Gemini API or Google AI Studio — moving between Gemini 3.8 Flash TTS and Flash-Lite TTS takes nothing more than a new model ID. Weigh batch against priority inference before locking in a production budget.