ElevenLabs v4 TurbovsSoniox TTS RT v2
Speed and accuracy
Left is faster. Higher reads more hard parts right.
- ElevenLabs v4 Turbo176 ms · 79.9%
- Soniox TTS RT v2241 ms · 83.6%
ElevenLabs v4 Turbo is better on non-streaming latency, streaming latency and naturalness. Soniox TTS RT v2 is better on stopping, accuracy and price.
Last updated Methodology by Dileep Chagam
Which is better at what
Measure by measure, the same sentences, the same place.
- Non-streaming latency (median)ElevenLabs v4 Turbo is better176 ms241 msElevenLabs v4 Turbo
- Streaming latency (median)ElevenLabs v4 Turbo is better69 ms183 msElevenLabs v4 Turbo
- Extra audio after a stopSoniox TTS RT v2 is betterFinishes first0 msSoniox TTS RT v2
- Hard parts read rightSoniox TTS RT v2 is better79.9%83.6%Soniox TTS RT v2
- Naturalness (1 to 5)ElevenLabs v4 Turbo is better4.424.37ElevenLabs v4 Turbo
- Price per 1M charactersSoniox TTS RT v2 is better$40.00$14.81Soniox TTS RT v2
- Numbers and shorthand7 a.m. · 20% · 36°F · approx.71%78%Soniox TTS RT v2
- Codes and addressesSAVE20 · help@north-clinic.org · 1-800-555-019982%86%Soniox TTS RT v2
- Read from contextSt. Mary's on Main St. · Dr. Okafor88%88%Level
- Medical termslevothyroxine · gastroenterology100%97%ElevenLabs v4 Turbo
An estimate: speech-to-text transcribers scored it, not people.
Hear both
The same sentence, read by each voice.
- 01A greetingThanks for calling Cedar Valley Family Practice, this is Riley. How can I help you today?
- 02MoneyYour current balance is $1,347.09.
- 03A dateThe order was placed on 2026-03-14 and shipped two days later.
- 04Tracking codeThe tracking number is 1Z 7A4 X29 0341 8867.
- 05Email addressI have m.rivera88@example.org, is that still current?
- 06An Irish nameSiobhan Ó Briain called about the invoice.
How each ranks among all 26
- Non-streaming latency (median)4 of 267 of 26
- Streaming latency (median)3 of 189 of 18
- Extra audio after a stopn/a1 of 6
- Hard parts read right16 of 2611 of 26
- Naturalness (1 to 5)11 of 2617 of 26
- Price per 1M characters18 of 251 of 25
ElevenLabs v4 Turbo vs Soniox TTS RT v2 FAQ
Which starts talking sooner, ElevenLabs v4 Turbo or Soniox TTS RT v2?
ElevenLabs v4 Turbo. ElevenLabs v4 Turbo: 176 ms. Soniox TTS RT v2: 241 ms.
ElevenLabs v4 Turbo. ElevenLabs v4 Turbo: 176 ms. Soniox TTS RT v2: 241 ms.
ElevenLabs v4 Turbo. ElevenLabs v4 Turbo: 69 ms. Soniox TTS RT v2: 183 ms.
Soniox TTS RT v2. ElevenLabs v4 Turbo: Finishes first. Soniox TTS RT v2: 0 ms.
Soniox TTS RT v2. ElevenLabs v4 Turbo: 79.9%. Soniox TTS RT v2: 83.6%.
Soniox TTS RT v2. ElevenLabs v4 Turbo: $40.00. Soniox TTS RT v2: $14.81.