Quick answer
ElevenLabs, widely regarded as one of the most realistic and inexpensive voice cloners across many languages, did not pass VoiceCheck at all. Its highest score was 45, below the 60 test threshold and far below the 79 to 89 range genuine users reach. It was blocked outright on laptop, cell phone, and landline audio.
Verdict
Blocked
Laptop (best 45), cell phone (best 31) and landline (best 9) clones stayed below the pass line of 60. No clone passed on any channel.
AI voice cloning tools like ElevenLabs can copy a voice from seconds of audio, so a fair question follows: can an ElevenLabs clone slip past VoiceVantage? To answer it with evidence, the Institute for Cyber Security and Resilient Systems at Ontario Tech University (UOIT) tested VoiceCheck against the five most popular deepfake tools, including ElevenLabs. This page shows ElevenLabs's results in full.
ElevenLabs vs VoiceCheck: the scores
ElevenLabs's highest deepfake score against VoiceCheck, by audio channel
Pass threshold set to 60 for single-factor testing. Genuine users typically score 79 to 89. Scores from independent UOIT testing.
ElevenLabs deepfake score Pass threshold (60) Genuine user range (79 to 89)
What these results mean
This is the clearest result of the five. ElevenLabs is widely regarded as one of the most realistic and inexpensive voice cloners, yet it did not pass VoiceCheck on any channel. Its highest score was 45, below the 60 test threshold and far below the 79 to 89 range genuine users reach.
On landline audio, the quality where the other tools occasionally reached the low 60s, ElevenLabs scored near zero. Against VoiceCheck, the strongest consumer cloner was blocked outright.
45
Laptop microphone (high quality)
best deepfake score: 45 / 100
Blocked (below pass)
31
Cell phone (medium quality)
best deepfake score: 31 / 100
Blocked (below pass)
9
Landline 8kHz (low quality)
best deepfake score: 9 / 100
Blocked (below pass)
Summary by audio channel
| Audio channel | ElevenLabs best score | Genuine user range | Outcome |
|---|---|---|---|
| Laptop microphone | 45 | 79 to 89 | Blocked |
| Cell phone | 31 | 79 to 89 | Blocked |
| Landline (8kHz) | 9 | 79 to 89 | Blocked |
About ElevenLabs
ElevenLabs is a leading AI voice generator known for high-quality, low-cost clones across many languages and accents, needing only about ten seconds of audio to train a voice.
Why VoiceVantage blocks ElevenLabs deepfakes
VoiceVantage validates a voice in as little as 1.4 milliseconds and is built on many years of signal-processing research. Against all five leading deepfake tools it stayed secure within its recommended configuration, and ElevenLabs, one of the strongest consumer cloners, did not pass on any channel.
Compare VoiceVantage with the other tools
Frequently asked questions
Can ElevenLabs voice clones bypass VoiceVantage?
No. In independent UOIT testing, ElevenLabs did not pass VoiceCheck on any channel. Its highest score was 45, below the 60 test threshold and far below the 79 to 89 range genuine users reach.
Isn't ElevenLabs the most realistic cloner?
It is widely regarded as one of the best and most inexpensive cloners across many languages, which makes the result notable. Against VoiceCheck it was blocked outright.
Is VoiceVantage safe against AI voice cloning?
Yes, within its recommended configuration. Across 533 independent attempts using all five leading deepfake tools, the pass rate was very low, and passing scores were confined to low landline quality and referred to a Help Desk.
How was this tested?
By the Institute for Cyber Security and Resilient Systems at Ontario Tech University (UOIT), using ElevenLabs to generate deepfake voice clones and attempting to authenticate against VoiceCheck across laptop, cell phone, and landline channels.
See VoiceVantage block deepfakes for your organization
Independently tested against the five leading AI voice-cloning tools.
Source: VoiceVantage VoiceCheck Verification Capability Analysis using five top deepfake apps, Ontario Tech University (UOIT), 2025. Read the announcement: VoiceVantage blocks the top five deepfake voice products across 533 independent tests.