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ElevenLabs Eleven v3 Conversational ElevenLabs · text-to-speech (TTS) API

215 ms time to first audio on Speko's board (read October 22, 2026); not measured by Coval, so no speed tier.

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

ElevenLabs Eleven v3 Conversational is a proprietary text-to-speech (TTS) API from ElevenLabs, measured by two independent benchmarks: Artificial Analysis and Speko.

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
1590
Listener Elo (95% interval)Artificial Analysis
1,214 ±13
Numbers and dates (0 to 1)Speko
0.3
List price per 1M charactersall sources
$50
  • Customer service (Artificial Analysis): 11th, Elo 1268 ±26

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

Gradium TTS vs ElevenLabs Eleven v3 Conversational Fastest TTS APIs, by speed tier

Speed

Speko's board plots it at 215 ms time to first audio from US East; its model page reports a 266 ms sweep.

Voice quality

Speko rates its naturalness at 1,590 Elo from blind A/B votes on phone-agent lines (8th highest of the 43 models Speko rates). In the Artificial Analysis Speech Arena it holds 1,214 ±13 Elo (95% interval), 15th highest of the 98 models Artificial Analysis rates; scores whose intervals overlap are a tie. In its Customer Service category, Artificial Analysis places it 11th, at 1,268 Elo.

Numbers and dates

Speko's pronunciation test on numbers, dates and currency scores it 0.3 on a 0-to-1 scale (15th highest of the 30 models Speko scores). This is the accuracy measure used here; Coval's word error rate separates models too little to compare them.

Price

Artificial Analysis lists $50. Speko lists about $50. List prices, as each source prints them.

Languages tested

Tested in Spanish, German, French, Portuguese, Japanese, Chinese, Arabic, Hindi, Vietnamese, Korean, Filipino, Norwegian and Tamil by Artificial Analysis or Speko. A language missing here was not tested, which does not mean it is unsupported.

Benchmark measurements

Speko

P50 TTFA, US East
266 ms
Naturalness (Elo)
1,590
Head-to-head win rate
66%
Pronunciation robustness (0 to 1)
0.3
Voice drift (lower is steadier)
20
Price per 1M characters
50 USD
Measured on
2026-07-03
Speko model
eleven_v3_conversational
Speko model page
benchmarks.speko.ai
Time to first audio, board chart
215 ms

Artificial Analysis Speech Arena

Customer service rank
11
Customer service Elo
1,268
Customer service Elo 95% interval (±)
26
Speech Arena Elo (blind listener preference)
1,214
Elo 95% interval (±)
13
Arena rank
15
Arena rank range
11-17
Arena appearances
2,788
Voices tested
8
Price per 1M characters
50 USD
Released
Aug 2026
Artificial Analysis model
v3 Conversational
Artificial Analysis leaderboard
artificialanalysis.ai

Price (all sources)

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

Not collected

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