Google Gemini 3.8 Flash-Lite TTS
A faster, lower-cost Gemini speech model for high-volume narration and voice agents in 101 languages, with the same voices and vocal cues as 3.8 Flash TTS.
From Google, Gemini 3.8 Flash-Lite TTS is a cloud text-to-speech model. It converts written text into natural, spoken audio. It offers a choice of 30 voices. Output is available as WAV and MP3. It runs through Google, OpenRouter, and Replicate using your own API key, from $0.50 per million input tokens.
- Released
- Sep 2026
- Pricing
- $0.50 / 1M in · $6.00 / 1M out
- Type
- Text-to-speech
- Voices
- 30 to choose from
- Output formats
- WAV, MP3
Samples
Generated with Gemini 3.8 Flash-Lite TTS via Google: the same three scripts read by every text-to-speech model in the catalog, so the only thing that changes between two models’ clips is the model. Each model uses its own default voice; there is no shared voice to hold constant.
Baseline naturalness and pacing
The last train had already left, but she decided to walk anyway. The city was quieter than she remembered, and for the first time in weeks, she wasn't in a hurry.
Emotion, emphasis, and pauses
Wait — you're telling me it actually worked? After all that? I can't believe it. Honestly, I thought we'd lost the whole thing.
Decimals, percentages, version numbers
The API returned 3,481 results in 0.42 seconds, a 12 percent improvement over version 2.5. Latency at the 99th percentile dropped from 840 milliseconds to 610.
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