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Comparison of SpaceXAI: Grok Voice TTS 1.0, abr-ai/niagara-38m-batch.en
2 modelsx-aiSpaceXAI: Grok Voice TTS 1.0Remove ×abr-aiabr-ai/niagara-38m-batch.enRemove ×
What’s differentGrok Voice TTS 1.0 is a text-to-speech model from SpaceXAI. It converts text into spoken audio across 20+ languages with automatic language detection, and offers five built-in voices (Eve, Ara,...0.038B parameters · 1 language · Encoder: State-space model · Decoder: CTC
DateMay 15, 2026ListedOct 17, 2026Discovered
Listed rateSee provider quotesSee provider quotes
Provider endpoints0 endpoints →0 endpoints →
AMI-Cleaned WER ↗English short-form; normalization unversionedNot reported13.87% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
Earnings22-Cleaned-AA-chunked WER ↗English short-form; normalization unversionedNot reported12.94% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
Gigaspeech-Cleaned WER ↗English short-form; normalization unversionedNot reported11.38% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
LS Clean WER ↗English short-form; normalization unversionedNot reported3.81% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
LS Other WER ↗English short-form; normalization unversionedNot reported9.28% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
SPGISpeech WER ↗English short-form; normalization unversionedNot reported3.08% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
URGENT2024 WER ↗English short-form; normalization unversionedNot reported22.88% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
Voice Arena Monsoon WER ↗English short-form; normalization unversionedNot reported10.41% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
Voxpopuli-AA-Cleaned WER ↗English short-form; normalization unversionedNot reported5.16% WER ↗abr-ai/niagara-38m-batch.enLeaderboard entry
Context window15K—
Max output13.5K—
Parameters—0.038B
Audio inputNot reportedSupported
TranscriptionNot reportedSupported

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