CekuraBench

Deepgram Aura-2vsRime Mist v3

Deepgram Aura-2Rime Mist v3
Compare

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
  • Deepgram Aura-2281 ms · 77.2%
  • Rime Mist v3292 ms · 77.2%

Deepgram Aura-2 is better on non-streaming latency, streaming latency, stopping and naturalness.

Last updated Methodology by Dileep Chagam

Which is better at what

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

MeasureDeepgram Aura-2Rime Mist v3
  • Non-streaming latency (median)Deepgram Aura-2 is better281 ms292 ms
  • Streaming latency (median)Deepgram Aura-2 is better126 ms293 ms
  • Extra audio after a stopDeepgram Aura-2 is better40 msNo stop message
  • Hard parts read rightLevel77.2%77.2%
  • Naturalness (1 to 5)Deepgram Aura-2 is better4.434.34
  • Price per 1M charactersLevel$30.00$30.00
Hard parts read rightDeepgram Aura-2Rime Mist v3
  • Numbers and shorthand7 a.m. · 20% · 36°F · approx.71%71%
  • Codes and addressesSAVE20 · help@north-clinic.org · 1-800-555-019987%77%
  • Read from contextSt. Mary's on Main St. · Dr. Okafor75%71%
  • Medical termslevothyroxine · gastroenterology86%100%

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

MeasureDeepgram Aura-2Rime Mist v3
  • Non-streaming latency (median)9 of 2613 of 26
  • Streaming latency (median)4 of 1813 of 18
  • Extra audio after a stop3 of 6n/a
  • Hard parts read right20 of 2620 of 26
  • Naturalness (1 to 5)8 of 2618 of 26
  • Price per 1M characters13 of 2513 of 25

Related comparisons

Deepgram Aura-2 vs Rime Mist v3 FAQ

  • Deepgram Aura-2. Deepgram Aura-2: 281 ms. Rime Mist v3: 292 ms.

  • Deepgram Aura-2. Deepgram Aura-2: 126 ms. Rime Mist v3: 293 ms.

  • Deepgram Aura-2. Deepgram Aura-2: 40 ms. Rime Mist v3: No stop message.

  • They are level. Deepgram Aura-2: 77.2%. Rime Mist v3: 77.2%.

  • They are level. Deepgram Aura-2: $30.00. Rime Mist v3: $30.00.