How fast is Google Gemini 3.8 Flash-Lite TTS?

Coval does not measure Google Gemini 3.8 Flash-Lite TTS, so no latency is published here.

How much does Google Gemini 3.8 Flash-Lite TTS cost?

The benchmarks print a list price of $10 to $11 per million characters for Google Gemini 3.8 Flash-Lite TTS.

Which languages was Google Gemini 3.8 Flash-Lite TTS tested in?

Artificial Analysis or Speko tested Google Gemini 3.8 Flash-Lite TTS in Arabic, Chinese, French, German, Hindi, Japanese, Portuguese, Spanish, Vietnamese.

Google · Proprietary · Read 2026-10-27

Google Gemini 3.8 Flash-Lite TTS: latency, voice quality, price and languages

Rank: not ranked
Speed tier: n/a
P95: n/a
Price / 1M chars: $10 to $11

Google Gemini 3.8 Flash-Lite TTS is a proprietary text-to-speech model from Google. Coval does not measure its latency, so it has no speed tier and no rank. Artificial Analysis or Speko tested it in 9 languages.

This summary is generated from the measures below; it is not a vendor description. Measures a source does not hold are shown as n/a and are never estimated.

Speed (Coval, 30 days, US East, English)

Speed tier	n/a
Median time to first audio	n/a
P90	n/a
P95	n/a
Mean	n/a
Standard deviation	n/a
Calls in the window	n/a
Cekura median, streamed text	n/a
Cekura median, full text	729 ms

Voice quality (never added together)

Listener Elo (Artificial Analysis)	1,256 ±13
Customer-service Elo (Artificial Analysis)	1,311 ±27
Naturalness (Speko)	1,639
Naturalness estimate (Cekura, 1 to 5)	n/a

Accuracy

Reading accuracy (Cekura)	n/a
Numbers (Cekura)	85%
Codes (Cekura)	85%
Context (Cekura)	98%
Medical terms (Cekura)	99%
Hard passages judged correct (Artificial Analysis)	87.4%
Numbers and dates (Speko score)	0.73
Word error rate (Coval)	n/a

Price per 1 million characters

Range across sources	$10 to $11
Artificial Analysis	$11
Speko	$10
Coval	n/a
Cekura	n/a

Coverage

Access	Proprietary
Streaming	Measured
Coval tags	n/a
Rated for	Knowledge sharing, Assistants, Entertainment, Customer service
Languages tested	Arabic, Chinese, French, German, Hindi, Japanese, Portuguese, Spanish, Vietnamese

Not collected

Speed (Coval median time to first audio): not measured by Coval (reading of 2026-10-27, 30-day window)
Speed (Coval P95 time to first audio): not measured by Coval (reading of 2026-10-27, 30-day window)

Sources

https://artificialanalysis.ai/text-to-speech (read 2026-10-27)
https://artificialanalysis.ai/text-to-speech/leaderboard/provider-voice (read 2026-10-27)
https://benchmarks.cekura.ai/text-to-speech (read 2026-10-27)
https://benchmarks.speko.ai/tts/ (read 2026-10-27)
Vendor site: https://cloud.google.com/text-to-speech

Keep exploring

Frequently asked questions

How fast is Google Gemini 3.8 Flash-Lite TTS?: Coval does not measure Google Gemini 3.8 Flash-Lite TTS, so no latency is published here.
How much does Google Gemini 3.8 Flash-Lite TTS cost?: The benchmarks print a list price of $10 to $11 per million characters for Google Gemini 3.8 Flash-Lite TTS.
Which languages was Google Gemini 3.8 Flash-Lite TTS tested in?: Artificial Analysis or Speko tested Google Gemini 3.8 Flash-Lite TTS in Arabic, Chinese, French, German, Hindi, Japanese, Portuguese, Spanish, Vietnamese.