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googleReleased Sep 23, 2026

Google: Gemini 3.8 Flash TTS

Separates spoken text from delivery instructions; supports exactly two named speakers with ordered dialogue turns.

Source description

Gemini 3.8 Flash TTS is a text-to-speech model from Google and the successor to Gemini 3.1 Flash TTS Preview. It is the creative tier of the 3.8 TTS family, suited...

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Context window32.8K
Max output16.4K
Provider endpoints1
Benchmark results1
Measured performance

Benchmark results

All leaderboards ↗
AA Provider Voice TTS Arena ↗Unversioned · provider native voices
1,275.38

Provider native voices · all categories · US + UK accents · 8 listed voices

95% CI 1,260.38–1,290.38 · n=2,783

Independent result
Access & cost

Prices across providers

1 quote

fal

Rate
$0.045
USD / 1K characters
Price source ↗Checked Oct 17, 2026
Endpoint IDgoogle/gemini-3.8-flash-tts

Model specifications

Developer
google
Modality
Audio
Context
32,768 tokens
Maximum output
16,384 tokens
Weights
Not reported
Released
Sep 23, 2026
Provider listed
Sep 23, 2026
First discovered
Oct 16, 2026

Exact identities

  • openroutergoogle/gemini-3.8-flash-tts
  • falgoogle/gemini-3.8-flash-tts
  • aa-ttse4a3c98a-0ac3-4039-a189-a820368ec76c

Sources

OpenRouter ↗fal ↗Artificial Analysis Provider Voice Arena ↗Model documentation ↗

Updated Oct 17, 2026

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