CekuraBench

Grok TTS

Every voiceCompare

Tied for best of 26 voices at reading read from context right

Read from context: 100%

  • Also strong at
  • Low priceTied 2nd of 25 · $15.00
  • Reads codes and addresses rightTied 4th of 26 · 86%

Grok TTS: tied for best of 26 voices at reading read from context right. Its weakest is naturalness, 25th of 26.

Last updated Methodology by Dileep Chagam

Grok TTS at a glance

Where it ranks among all 26 voices, in plain words.

Good at
  • Reads read from context rightTied best of 26
  • Low priceTied 2nd of 25
  • Reads codes and addresses rightTied 4th of 26
  • Stops quickly when interruptedTied best of 6
Not so good at
  • Sounds less natural25th of 26

Hear Grok TTS

The first read of each test sentence, unedited.

Grok TTS

Grok TTS head to head

Pick any voice to set against it. Every pair has its own page.

Compare
MeasureGrok TTSSmallest Lightning v3.1
  1. Non-streaming358 ms357 ms
  2. Streaming157 ms363 ms
  3. Stopping0 msNo stop message
  4. Accuracy87.4%81.3%
  5. Naturalness4.174.49
  6. Price / 1M$15.00$19.50
  7. Measures won3 of 62 of 6
The check marks the better value on each measure. Every pair has its own page with the full numbers.Open this pair · 325 pairs in all

Its closest rivals on speed

Grok TTS FAQ

  • Grok TTS starts in 358 ms on a typical sentence (median) and 446 ms on the slowest 1 in 10 (p90), 18th of 26 voices.

  • Yes. With streamed text, Grok TTS starts 157 ms after the last word arrives.

  • Yes. After the stop it still sends 0 ms of audio (median), which the agent throws away.

  • Grok TTS read 87.4% of the hard parts right, as speech-to-text heard it. Its weakest kind is numbers and shorthand, at 82.1%. This is an estimate, not a listening test.

  • Grok TTS lists at $15.00 per million characters.