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Neuphonic TTS Neuphonic · text-to-speech (TTS) API

Listener Elo 944 ±14 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.

Neuphonic TTS is a proprietary text-to-speech (TTS) API from Neuphonic, 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
944 ±14
Numbers and dates (0 to 1)Speko
not rated
List price per 1M charactersall sources
$20.8
  • Customer service (Artificial Analysis): 85th, Elo 969 ±35

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

Gradium TTS vs Neuphonic TTS Fastest TTS APIs, by speed tier

Speed

Neither Coval nor Speko measures Neuphonic 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 944 ±14 Elo (95% interval), 85th highest of the 98 models Artificial Analysis rates; scores whose intervals overlap are a tie. In its Customer Service category, Artificial Analysis places it 85th, at 969 Elo.

Numbers and dates

Speko has not scored its pronunciation of numbers and dates.

Price

Artificial Analysis lists $20.8. List prices, as each source prints them.

Benchmark measurements

Artificial Analysis Speech Arena

Customer service rank
85
Customer service Elo
969
Customer service Elo 95% interval (±)
35
Speech Arena Elo (blind listener preference)
944
Elo 95% interval (±)
14
Arena rank
85
Arena rank range
83-87
Arena appearances
2,428
Voices tested
7
Price per 1M characters
20.8 USD
Released
Oct 2024
Artificial Analysis model
Neuphonic TTS
Artificial Analysis leaderboard
artificialanalysis.ai

Price (all sources)

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

Not collected

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