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MetaVoice v1 MetaVoice · text-to-speech (TTS) API

Listener Elo 848 ±18 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.

MetaVoice v1 is an open-weights text-to-speech (TTS) API from MetaVoice, 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
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P95 time to first audio (slow turns)Coval, 30 days
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Naturalness EloSpeko
not rated
Listener Elo (95% interval)Artificial Analysis
848 ±18
Numbers and dates (0 to 1)Speko
not rated
List price per 1M charactersall sources
not published

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

Gradium TTS vs MetaVoice v1 Fastest TTS APIs, by speed tier

Speed

Neither Coval nor Speko measures MetaVoice v1'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 848 ±18 Elo (95% interval), 97th highest of the 98 models Artificial Analysis rates; scores whose intervals overlap are a tie.

Numbers and dates

Speko has not scored its pronunciation of numbers and dates.

Price

No list price is published by Coval, Speko or Artificial Analysis for this model.

Benchmark measurements

Artificial Analysis Speech Arena

Speech Arena Elo (blind listener preference)
848
Elo 95% interval (±)
18
Arena rank
97
Arena rank range
97-98
Arena appearances
1,575
Released
Feb 2024
Artificial Analysis model
MetaVoice v1
Artificial Analysis leaderboard
artificialanalysis.ai

Not collected

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