Gemini 3.8 Flash-Lite TTS

What it's for

Flash-Lite is tuned for latency and throughput: assistants, notifications, drafts, bulk narration and anywhere you'd rather trade a little expressiveness for speed and a lower bill. It replaces the older gemini-3.1-flash-tts-preview model.

Key facts

• Model code: gemini-3.8-flash-lite-tts
• Languages: 101
• Google list price: $0.50 per 1M text input tokens, $6.00 per 1M audio output tokens (launch rate through Dec 31, 2026; doubles Jan 1, 2027). Audio bills at 25 tokens/second.
• Output: WAV by default
• On this site: 1.42 credits per 1,000 characters, rounded up

Same controls, faster model

Flash-Lite accepts the same request shape as Flash on this site - 30 voices, accent, style, pace, audio_profile, director settings, inline tags and two-speaker dialogue. Switch models with the toggle at the top of the playground.

Lite or Flash?

Pick Lite for volume and speed - it's ~33% cheaper per character here and responds faster. Pick Flash when the read needs to carry emotion, dialects or long-form narration.