Voice AI BenchmarksBy

PROVIDERLAST 30 DAYS

official resource

Palabra AI voice AI models and benchmarks

Palabra AI lists 1 TTS model in Coval. Its fastest dated TTS result is Palabra TTS v1 at mean 115 ms time to first audio (5th of 28) among TTS systems, with 5.8% WER. Results cover the last 30 days. Last measured .

Palabra AI develops speech translation and generation services.

Measured models
1
TTS
Best TTS model#5 / 28
115ms
Palabra TTS v1

Overview

The tested model is multilingual and supports voice cloning plus an on-premises deployment option.

Every model below is measured daily on the same fixed inputs and ranked against the full field, never blended into a company score.

Model lineup

Text-to-Speech
Palabra TTS v1

Text-to-Speech

Full TTS dashboard

Ranked on Time to First Audio against 28 measured models.

Time to First Audioms · lower is better · Palabra AI models markedEvery measured TTS model on Time to First Audio, with Palabra AI's models highlighted.
  1. #1vui66 ms
  2. #2Qwen3 TTS Fast71 ms
  3. #3TTS Flash 291 ms
  4. #4Qwen3 TTS 1.7b106 ms
  5. #5Palabra TTS v1115 ms
  6. #6TTS 2181 ms
  7. #7Flash v2.5194 ms
leaders plus Palabra AI models · 21 other models in the full table
Word Error Rate% · lower is better · Palabra AI models markedEvery measured TTS model on Word Error Rate, with Palabra AI's models highlighted.
  1. #1TTS RT v13.9%
  2. #2TTS Rt v24.2%
  3. #3Qwen3 TTS Fast4.2%
  4. #4Eleven v3 Conversational4.4%
  5. #5Lightning v3.1 Pro4.4%
  6. #6Simba 3.24.4%
  7. #7TTS 24.6%
  8. #24Palabra TTS v15.8%
leaders plus Palabra AI models · 20 other models in the full table
TTFA vs WER — Palabra AI vs every measured modelEach point is one measured TTS model · Palabra AI models highlighted · 30-day averagesTime to First Audio against Word Error Rate for every measured TTS model, with Palabra AI's models highlighted.
vui — 66 ms, 5.4%Qwen3 TTS Fast — 71 ms, 4.2%TTS Flash 2 — 91 ms, 5.4%Qwen3 TTS 1.7b — 106 ms, 5.5%TTS 2 — 181 ms, 4.6%Flash v2.5 — 194 ms, 6.7%Default — 235 ms, 5.3%TTS Rt v2 — 245 ms, 4.2%TTS RT v1 — 245 ms, 3.9%Mist v3 — 258 ms, 5.5%Sonic 3.5 — 277 ms, 5.9%Phantom Z 3.4 conversational — 286 ms, 6.0%Aura 2 — 308 ms, 5.2%Coda — 312 ms, 5.0%S2.1 Pro — 335 ms, 4.8%Eleven v3 Conversational — 348 ms, 4.4%Lightning v3.1 Pro — 362 ms, 4.4%S1 — 379 ms, 4.9%Grok TTS — 397 ms, 4.9%Sonic 3.6 — 423 ms, 5.3%Simba 3.2 — 451 ms, 4.4%Simba 3.0 — 472 ms, 5.2%Chirp 3 HD — 535 ms, 5.2%Falcon 2 — 545 ms, 5.2%Qwen3 TTS Flash Realtime — 753 ms, 8.9%S2.1 Pro Free — 963 ms, 4.7%GPT-4o mini TTS — 1013 ms, 4.8%Palabra TTS v1 — 115 ms, 5.8%
Benchmarked models with their Time to First Audio over the last 30 days.
ModelHostTTFARank
Palabra TTS v1Palabra115 ms5th of 28

How fast are Palabra AI's TTS models?

Palabra TTS v1 measures mean 115 ms time to first audio (5th of 28) among TTS systems. Last measured 2026-09-15.

How accurate are Palabra AI's TTS models?

Palabra TTS v1 measures 5.8% word error rate (24th of 28) among TTS systems. Last measured 2026-09-15.

Which Palabra AI model is fastest?

Its fastest dated TTS result is Palabra TTS v1 at mean 115 ms time to first audio (5th of 28) among TTS systems, with 5.8% WER. Last measured 2026-09-15.

Limits of this comparison

Coval measures Palabra TTS v1 through Palabra's first-party synthesis endpoint.

  • Translation and dubbing quality are not part of the TTS latency and intelligibility metrics shown here.

Official resources

Same datasets, prompts and metric definitions for every model, measured by Coval’s open-source runner. Full methodology on the overview.

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