Rime · Proprietary · Read 2026-10-27
Rime Mist v3: latency, voice quality, price and languages
- Rank
- 12 (tied) / 23
- Speed tier
- Visible delay
- P95
- 359.9 ms
- Price / 1M chars
- $30
Rime Mist v3 is a proprietary text-to-speech model from Rime. Coval measures a median of 275.2 ms and a P95 of 359.9 ms to first audio, which puts it in the Visible delay speed tier, rank 12 (tied) 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 | Visible delay |
| Median time to first audio | 275.2 ms |
| P90 | 348.0 ms |
| P95 | 359.9 ms |
| Mean | 288.0 ms |
| Standard deviation | 45.2 ms |
| Calls in the window | 254 |
| Cekura median, streamed text | 293 ms |
| Cekura median, full text | 292 ms |
Voice quality (never added together)
| Listener Elo (Artificial Analysis) | n/a |
| Customer-service Elo (Artificial Analysis) | n/a |
| Naturalness (Speko) | 1,428 |
| Naturalness estimate (Cekura, 1 to 5) | 4.34 |
Accuracy
| Reading accuracy (Cekura) | 77.2% |
| Numbers (Cekura) | 71% |
| Codes (Cekura) | 77% |
| Context (Cekura) | 71% |
| Medical terms (Cekura) | 100% |
| 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 | $30 |
| Artificial Analysis | n/a |
| Speko | $30 |
| Coval | $30 |
| Cekura | $30 |
Coverage
| Access | Proprietary |
| Streaming | Measured |
| Coval tags | multilingual |
| Rated for | n/a |
| Languages tested | none beyond English |
Not collected
- Listener rating (Artificial Analysis Speech Arena Elo): not measured by Artificial Analysis (reading of 2026-10-27)
- Numbers and dates (Speko pronunciation score): listed by Speko without this value (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.cekura.ai/text-to-speech (read 2026-10-27)
- 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.rime.ai/
Keep exploring
Frequently asked questions
- How fast is Rime Mist v3?
- Coval measures a median time to first audio of 275.2 ms and a P95 of 359.9 ms for Rime Mist v3, over 30 days from the US East in English (Visible delay tier).
- How much does Rime Mist v3 cost?
- The benchmarks print a list price of $30 per million characters for Rime Mist v3.
- Which languages was Rime Mist v3 tested in?
- No source tested Rime Mist v3 in a language other than English.