CekuraBench

Rime Mist v3vsMAI-Voice-2.1-Flash

Rime Mist v3MAI-Voice-2.1-Flash
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Speed and accuracy

Left is faster. Higher reads more hard parts right.

Fast and accurate60%70%80%90%100%00.5s1s1.5s2sTime until the caller hears the voice
  • Rime Mist v3292 ms · 77.2%
  • MAI-Voice-2.1-Flash289 ms · 78.3%

Rime Mist v3 is better on streaming latency and naturalness. MAI-Voice-2.1-Flash is better on non-streaming latency, accuracy and price.

Last updated Methodology by Dileep Chagam

Which is better at what

Measure by measure, the same sentences, the same place.

MeasureRime Mist v3MAI-Voice-2.1-Flash
  • Non-streaming latency (median)MAI-Voice-2.1-Flash is better292 ms289 ms
  • Streaming latency (median)Rime Mist v3 is better293 msCan't stream
  • Extra audio after a stopNo stop messageNo stop message
  • Hard parts read rightMAI-Voice-2.1-Flash is better77.2%78.3%
  • Naturalness (1 to 5)Rime Mist v3 is better4.344.32
  • Price per 1M charactersMAI-Voice-2.1-Flash is better$30.00$15.00
Hard parts read rightRime Mist v3MAI-Voice-2.1-Flash
  • Numbers and shorthand7 a.m. · 20% · 36°F · approx.71%79%
  • Codes and addressesSAVE20 · help@north-clinic.org · 1-800-555-019977%67%
  • Read from contextSt. Mary's on Main St. · Dr. Okafor71%75%
  • Medical termslevothyroxine · gastroenterology100%92%

An estimate: speech-to-text transcribers scored it, not people.

Hear both

The same sentence, read by each voice.

19 sentences, the same for both
  1. 01A greetingThanks for calling Cedar Valley Family Practice, this is Riley. How can I help you today?
  2. 02MoneyYour current balance is $1,347.09.
  3. 03A dateThe order was placed on 2026-03-14 and shipped two days later.
  4. 04Tracking codeThe tracking number is 1Z 7A4 X29 0341 8867.
  5. 05Email addressI have m.rivera88@example.org, is that still current?
  6. 06An Irish nameSiobhan Ó Briain called about the invoice.

How each ranks among all 26

MeasureRime Mist v3MAI-Voice-2.1-Flash
  • Non-streaming latency (median)13 of 2612 of 26
  • Streaming latency (median)13 of 18n/a
  • Extra audio after a stopn/an/a
  • Hard parts read right20 of 2618 of 26
  • Naturalness (1 to 5)18 of 2622 of 26
  • Price per 1M characters13 of 252 of 25

Related comparisons

Rime Mist v3 vs MAI-Voice-2.1-Flash FAQ

  • MAI-Voice-2.1-Flash. Rime Mist v3: 292 ms. MAI-Voice-2.1-Flash: 289 ms.

  • Rime Mist v3. Rime Mist v3: 293 ms. MAI-Voice-2.1-Flash: Can't stream.

  • Neither has a figure. Rime Mist v3: No stop message. MAI-Voice-2.1-Flash: No stop message.

  • MAI-Voice-2.1-Flash. Rime Mist v3: 77.2%. MAI-Voice-2.1-Flash: 78.3%.

  • MAI-Voice-2.1-Flash. Rime Mist v3: $30.00. MAI-Voice-2.1-Flash: $15.00.