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Microsoft Azure Neural Microsoft · text-to-speech (TTS) API

Listener Elo 1,034 ±20 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.

Microsoft Azure Neural is a proprietary text-to-speech (TTS) API from Microsoft, measured by one independent benchmark, Artificial Analysis.

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Proprietary Knowledge sharing Artificial Analysis Microsoft

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
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Naturalness EloSpeko
not rated
Listener Elo (95% interval)Artificial Analysis
1,034 ±20
Numbers and dates (0 to 1)Speko
not rated
List price per 1M charactersall sources
$15

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

Gradium TTS vs Microsoft Azure Neural Fastest TTS APIs, by speed tier

Speed

Neither Coval nor Speko measures Microsoft Azure Neural'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 1,034 ±20 Elo (95% interval), 74th 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

Artificial Analysis lists $15. List prices, as each source prints them.

Benchmark measurements

Price (all sources)

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

Artificial Analysis Speech Arena

Speech Arena Elo (blind listener preference)
1,034
Elo 95% interval (±)
20
Arena rank
74
Arena rank range
65-79
Arena appearances
1,156
Voices tested
8
Price per 1M characters
15 USD
Released
Sept 2018
Artificial Analysis model
Azure Neural
Artificial Analysis leaderboard
artificialanalysis.ai

Not collected

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