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Google Gemini 2.5 Flash Lite TTS Google · text-to-speech (TTS) API

Listener Elo 1,086 ±11 on Artificial Analysis (read October 22, 2026); latency not measured.

Benchmark summary: No speed tier: Coval, the source of the tiers, does not measure this model.

Google Gemini 2.5 Flash Lite TTS is a proprietary text-to-speech (TTS) API from Google, measured by one independent benchmark, Artificial Analysis.

Speed tier

Not measured by Coval

No speed tier: Coval, the source of the tiers, does not measure this model.

Median time to first audioCoval, 30 days
—
P95 time to first audio (slow turns)Coval, 30 days
—
Naturalness EloSpeko
not rated
Listener Elo (95% interval)Artificial Analysis
1,086 ±11
Numbers and dates (0 to 1)Speko
not rated
List price per 1M charactersall sources
$9.2
  • Customer service (Artificial Analysis): 63rd, Elo 1082 ±32

Data read October 22, 2026. No combined score: methodology

Gradium TTS vs Google Gemini 2.5 Flash Lite TTS Fastest TTS APIs, by speed tier

Speed

Neither Coval nor Speko measures Google Gemini 2.5 Flash Lite TTS's latency, so it has no speed tier and does not appear in the speed tiers.

Voice quality

In the Artificial Analysis Speech Arena it holds 1,086 ±11 Elo (95% interval), 48th highest of the 98 models Artificial Analysis rates; scores whose intervals overlap are a tie. In its Customer Service category, Artificial Analysis places it 63rd, at 1,082 Elo.

Numbers and dates

Speko has not scored its pronunciation of numbers and dates.

Price

Artificial Analysis lists $9.2. List prices, as each source prints them.

Benchmark measurements

Artificial Analysis Speech Arena

Customer service rank
63
Customer service Elo
1,082
Customer service Elo 95% interval (±)
32
Speech Arena Elo (blind listener preference)
1,086
Elo 95% interval (±)
11
Arena rank
49
Arena rank range
43-53
Arena appearances
3,291
Voices tested
5
Price per 1M characters
9.2 USD
Released
Dec 2025
Artificial Analysis model
Gemini 2.5 Flash Lite TTS
Artificial Analysis leaderboard
artificialanalysis.ai

Price (all sources)

Lowest list price per 1M characters
9.2 USD
Highest list price per 1M characters
9.2 USD

Not collected

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