Google

Google: Gemini 3.8 Flash Lite TTS

google/gemini-3.8-flash-lite-tts
Context

8K

Input

text

Output

audio

Tool calling

Not listed

OverviewProvidersPricingBenchmarksAPI and quickstartReviews

About this model

Gemini 3.8 Flash-Lite TTS is Google's fast and cost-efficient text-to-speech model optimized for high-throughput production, real-time voice-agent cascades, read-aloud applications, voice replication, and everyday speech generation. It combines low latency with expressive and natural speech while using the same API schema and structured prompting format as Gemini 3.8 Flash TTS. The model supports 101 languages, single-speaker and multi-speaker generation, prebuilt and custom voices, voice design, voice replication, inline vocal events, and structured control over speaking style, accent, pace, and tone.

Compare Text-to-Speech ModelsCompare Audio Models

Input modalities

text

Accepted as model input

Providers

Available routing options for this model through OneInfer.

Google
Available

Input tokens

$0.500 / 1M tokens

Output tokens

$6.000 / 1M tokens

Routing

OneInfer optimized

Pricing

Current OneInfer pricing for this model.

UsagePrice
Input tokens$0.500 / 1M tokens
Output tokens$6.000 / 1M tokens
Cached input tokens$0.125 / 1M tokens

Performance & Benchmarks

Independent evaluations and live cluster operational metrics

We haven’t measured this model yet. Published academic results are under Academic Evaluations.

API Guide

API docs
  1. 1

    Generate your access token

    Use your API key to generate the JWT access token required by the Models API.

  2. 2

    Add the JWT token

    Copy the generated JWT token and replace JWT_TOKEN in the example below.

  3. 3

    Check your credits

    If your balance is too low, before calling the model.

  4. 4

    Run the API example

    Choose your preferred language, copy the example, and send your first model request.

    curl -X POST https://api.oneinfer.ai/v1/ula/generate-audio \
  -H "Authorization: Bearer YOUR_JWT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
  "provider": "google",
  "model": "google/gemini-3.8-flash-lite-tts",
  "prompt": "OneInfer makes AI inference simple.",
  "stream": false,
  "voice_id": "achernar",
  "format": "mp3"
}'

Community Model Reviews & Ratings

Verified visitor & developer evaluations on Google: Gemini 3.8 Flash Lite TTS's real-world intelligence, code accuracy, and speed

4.8
Community consensus rating
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