Microsoft · n/a · Read 2026-10-27
Microsoft MAI-Voice-2.1-Flash: latency, voice quality, price and languages
- Rank
- not ranked
- Speed tier
- n/a
- P95
- n/a
- Price / 1M chars
- n/a
Microsoft MAI-Voice-2.1-Flash is a text-to-speech model from Microsoft. Coval does not measure its latency, so it has no speed tier and no rank. 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 | n/a |
| Median time to first audio | n/a |
| P90 | n/a |
| P95 | n/a |
| Mean | n/a |
| Standard deviation | n/a |
| Calls in the window | n/a |
| Cekura median, streamed text | n/a |
| Cekura median, full text | 289 ms |
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) | 79% |
| Codes (Cekura) | 67% |
| Context (Cekura) | 75% |
| Medical terms (Cekura) | 92% |
| Hard passages judged correct (Artificial Analysis) | n/a |
| Numbers and dates (Speko score) | n/a |
| Word error rate (Coval) | n/a |
Price per 1 million characters
| Range across sources | n/a |
| Artificial Analysis | n/a |
| Speko | n/a |
| Coval | n/a |
| Cekura | n/a |
Coverage
| Access | n/a |
| Streaming | Measured |
| Coval tags | n/a |
| Rated for | n/a |
| Languages tested | none beyond English |
Not collected
- Speed (Coval median time to first audio): not measured by Coval (reading of 2026-10-27, 30-day window)
- Speed (Coval P95 time to first audio): not measured by Coval (reading of 2026-10-27, 30-day window)
- 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)
- Access: license not published by Artificial Analysis or Coval, no official weights release found
Sources
- https://benchmarks.cekura.ai/text-to-speech (read 2026-10-27)
- Vendor site: https://azure.microsoft.com/en-us/products/ai-foundry/tools/speech
Keep exploring
Frequently asked questions
- How fast is Microsoft MAI-Voice-2.1-Flash?
- Coval does not measure Microsoft MAI-Voice-2.1-Flash, so no latency is published here.
- How much does Microsoft MAI-Voice-2.1-Flash cost?
- No benchmark prints a list price for Microsoft MAI-Voice-2.1-Flash.
- Which languages was Microsoft MAI-Voice-2.1-Flash tested in?
- No source tested Microsoft MAI-Voice-2.1-Flash in a language other than English.