Fluxions · Proprietary · Read 2026-10-27
Fluxions vui: latency, voice quality, price and languages
- Rank
- not ranked
- Speed tier
- Headroom
- P95
- 75.0 ms
- Price / 1M chars
- $9
Fluxions vui is a proprietary text-to-speech model from Fluxions. Coval measures a median of 39.7 ms and a P95 of 75.0 ms to first audio, which puts it in the Headroom speed tier. It is not ranked because Coval does not tag it multilingual. 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 | Headroom |
| Median time to first audio | 39.7 ms |
| P90 | 64.4 ms |
| P95 | 75.0 ms |
| Mean | 43.3 ms |
| Standard deviation | 17.1 ms |
| Calls in the window | 2,494 |
| 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) | n/a |
| 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) | n/a |
| Word error rate (Coval) | 2.1% |
Price per 1 million characters
| Range across sources | $9 |
| Artificial Analysis | n/a |
| Speko | n/a |
| Coval | $9 |
| Cekura | n/a |
Coverage
| Access | Proprietary |
| Streaming | Measured |
| Coval tags | emotion-control, voice-cloning |
| Rated for | Voice agents |
| Languages tested | none beyond English |
Not collected
- Naturalness (Speko naturalness): not measured by Speko (reading of 2026-10-27)
- Listener rating (Artificial Analysis Speech Arena Elo): not measured by Artificial Analysis (reading of 2026-10-27)
- Numbers and dates (Speko pronunciation score): not measured by Speko (reading of 2026-10-27)
- Price (Artificial Analysis price per 1M characters): not measured by Artificial Analysis (reading of 2026-10-27)
Sources
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Frequently asked questions
- How fast is Fluxions vui?
- Coval measures a median time to first audio of 39.7 ms and a P95 of 75.0 ms for Fluxions vui, over 30 days from the US East in English (Headroom tier).
- How much does Fluxions vui cost?
- The benchmarks print a list price of $9 per million characters for Fluxions vui.
- Which languages was Fluxions vui tested in?
- No source tested Fluxions vui in a language other than English.