AssemblyAI TTS 1
The best of 27 voices at reading codes and addresses right
Codes and addresses: 92%
- Also strong at
- Starts talking fast4th of 27 · 171 ms
- Sounds natural4th of 27 · 4.50
AssemblyAI TTS 1: the best of 27 voices at reading codes and addresses right. Its weakest is read from context, tied 22nd of 27.
Last updated Methodology by Dileep Chagam
AssemblyAI TTS 1 at a glance
Where it ranks among all 27 voices, in plain words.
- Reads codes and addresses rightBest of 27
- Starts talking fast4th of 27
- Sounds natural4th of 27
- Low priceTied 2nd of 26
- Reads medical terms rightTied best of 27
- Misreads read from contextTied 22nd of 27
Hear AssemblyAI TTS 1
The first read of each test sentence, unedited.
AssemblyAI TTS 1 head to head
Pick any voice to set against it. Every pair has its own page.
- Non-streaming171 ms176 ms
- Streaming159 ms69 ms
- Stopping40 msFinishes first
- Accuracy81.5%79.9%
- Naturalness4.504.42
- Price / 1M$15.00$40.00
- Measures won4 of 61 of 6
Its closest rivals on speed
AssemblyAI TTS 1 FAQ
How fast does AssemblyAI TTS 1 start talking?
AssemblyAI TTS 1 starts in 171 ms on a typical sentence (median) and 296 ms on the slowest 1 in 10 (p90), 4th of 27 voices.
AssemblyAI TTS 1 starts in 171 ms on a typical sentence (median) and 296 ms on the slowest 1 in 10 (p90), 4th of 27 voices.
Yes. With streamed text, AssemblyAI TTS 1 starts 159 ms after the last word arrives.
Yes. After the stop it still sends 40 ms of audio (median), which the agent throws away.
AssemblyAI TTS 1 read 81.5% of the hard parts right, as speech-to-text heard it. Its weakest kind is read from context, at 70.8%. This is an estimate, not a listening test.
AssemblyAI TTS 1 lists at $15.00 per million characters.
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