Palabra · Proprietary · Read 2026-10-27
Palabra TTS v1: latency, voice quality, price and languages
- Rank
- 7 / 23
- Speed tier
- Fast enough
- P95
- 214.3 ms
- Price / 1M chars
- $12
Palabra TTS v1 is a proprietary text-to-speech model from Palabra. Coval measures a median of 105.1 ms and a P95 of 214.3 ms to first audio, which puts it in the Fast enough speed tier, rank 7 of 23 in the multilingual ranking. No source tested it in a language other than English.
This summary is generated from the measures below; it is not a vendor description. Measures a source does not hold are shown as n/a and are never estimated.
Speed (Coval, 30 days, US East, English)
| Speed tier | Fast enough |
| Median time to first audio | 105.1 ms |
| P90 | 153.4 ms |
| P95 | 214.3 ms |
| Mean | 120.9 ms |
| Standard deviation | 67.1 ms |
| Calls in the window | 2,318 |
| Cekura median, streamed text | n/a |
| Cekura median, full text | n/a |
Voice quality (never added together)
| Listener Elo (Artificial Analysis) | n/a |
| Customer-service Elo (Artificial Analysis) | n/a |
| Naturalness (Speko) | 1,520 |
| Naturalness estimate (Cekura, 1 to 5) | n/a |
Accuracy
| Reading accuracy (Cekura) | n/a |
| Numbers (Cekura) | n/a |
| Codes (Cekura) | n/a |
| Context (Cekura) | n/a |
| Medical terms (Cekura) | n/a |
| Hard passages judged correct (Artificial Analysis) | n/a |
| Numbers and dates (Speko score) | 0.16 |
| Word error rate (Coval) | 2.8% |
Price per 1 million characters
| Range across sources | $12 |
| Artificial Analysis | n/a |
| Speko | $12 |
| Coval | $12 |
| Cekura | n/a |
Coverage
| Access | Proprietary |
| Streaming | Measured |
| Coval tags | multilingual, voice-cloning |
| Rated for | Voice agents |
| Languages tested | none beyond English |
Not collected
- Listener rating (Artificial Analysis Speech Arena Elo): not measured by Artificial Analysis (reading of 2026-10-27)
- Price (Artificial Analysis price per 1M characters): not measured by Artificial Analysis (reading of 2026-10-27)
Sources
- https://benchmarks-api-6wxgp27p2a-ue.a.run.app/v1/results/aggregates?benchmark=TTS&window=30d&include_series=false (read 2026-10-27)
- https://benchmarks.speko.ai/tts/ (read 2026-10-27)
- Vendor site: https://www.palabra.ai/
Keep exploring
Frequently asked questions
- How fast is Palabra TTS v1?
- Coval measures a median time to first audio of 105.1 ms and a P95 of 214.3 ms for Palabra TTS v1, over 30 days from the US East in English (Fast enough tier).
- How much does Palabra TTS v1 cost?
- The benchmarks print a list price of $12 per million characters for Palabra TTS v1.
- Which languages was Palabra TTS v1 tested in?
- No source tested Palabra TTS v1 in a language other than English.