AI Voice Detector
Detect AI-generated voice from ElevenLabs v3, Suno v4 and Udio v2. Spectrogram analysis with phoneme-level confidence. 99.1% accuracy on the RAID benchmark. $1 in free scan credit on signup. Lifetime scan history on every plan.
How it works
Paste, scan, verify - in under two seconds.
Upload audio
MP3, WAV or M4A. Long clips are processed in 30-second windows up to 60 minutes on Business.
Spectrogram analysis
Phoneme-level confidence with a cross-provider classifier trained on ElevenLabs v3, Suno v4 and Udio v2.
Confidence per phoneme
Get the verdict, confidence band, suspected TTS engine and per-phoneme highlights with confidence aggregated across the clip.
What the ai voice detector actually catches.
Six headline generators, sampled across every modality we cover. Each entry is benchmarked monthly against the vendor's latest release - we cycle the roster instead of padding it.
- 01/06AudioElevenLabsElevenLabs v3release v3ActiveSpectral signature
- 02/06AudioSunoSuno v4release v4ActiveMusic synthesis
- 03/06Audio-Udio v2ActiveActive coverage
Accuracy & methodology
Benchmark first. Hype never.
We benchmark at 97.6% accuracy across ElevenLabs v3, Suno v4 and Udio v2 generations, with a 2.1% false-positive rate. The pipeline runs spectrogram analysis with phoneme-level confidence and a cross-provider learned classifier. Long-form audio is processed in 30-second windows with confidence aggregated across the clip.
Use cases
Who uses it.
Podcasters
Audit voiceover work for ElevenLabs v3 and other TTS. Phoneme-level confidence on every clip.
Call-center fraud
Screen inbound calls for impersonation. Detects cloned voices across multiple TTS providers in real time.
Newsroom verification
Verify recorded interviews and leaked audio before publication. Spectrogram analysis with confidence bands.
Educators
Check audio submissions and oral-defence recordings for AI generation.
Comparison
How does this compare to other detectors?
We're honest about competitor strengths. Most are text-only; ai-detectors.io is the multi-modal alternative with $1 in free credit instead of a $14.95 paid minimum.
Pricing
One credit pool. Four plans.
Lifetime scan history on every plan. Same accuracy across every model. No retention tier, no per-modality caps to juggle.
Save 50% paying yearly. Upgrade or cancel any time.
Free
Try itFree forever, no card required
Try every text and image model. $1 in credit on signup.
Credit
- $1 in signup credit
- No top-ups
Modalities
Limits
- 25,000 chars / scan
- 5 MB per image
Features
- Per-sentence highlights
- Model attribution
- API access
Support
- Community
- Lifetime scan history
Starter
SoloBilled yearly - $54/year
Sentence-level highlights and bulk text scans for solo writers.
Credit
- $12 credit / month
- Top-up packs available
Modalities
Limits
- 75,000 chars / scan
- 10 MB per image
Features
- Per-sentence highlights
- Model attribution
- API access
Support
- Email · 72h
- Lifetime scan history
Pro
Multi-modalBilled yearly - $114/year
All four modalities with model attribution.
Credit
- $25 credit / month
- Top-up packs available
Modalities
Limits
- 150,000 chars / scan
- 25 MB per image
- 10 min per audio
- 5 min per video
Features
- Per-sentence highlights
- Model attribution
- API access
Support
- Email · 24h
- Lifetime scan history
Business
ScaleBilled yearly - $294/year
API access and bulk pipelines for teams at scale.
Credit
- $75 credit / month
- Top-up packs available
Modalities
Limits
- 150,000 chars / scan
- 50 MB per image
- 60 min per audio
- 30 min per video
Features
- Per-sentence highlights
- Model attribution
- API access
Support
- Priority · 4h
- Lifetime scan history
One-time top-ups
Top up any time. Bigger pack, bigger bonus.
Buy more credit without changing plans. Same balance, every modality.
| Compare plans | Free | Starter | Pro | Business |
|---|---|---|---|---|
| Monthly | $0 | $9 | $19 | $49 |
| Annual (-50%) | - | $4.50 | $9.50 | $24.50 |
| Credit | $1 (signup) | $12/mo | $25/mo | $75/mo |
| Top-up | ||||
| Text | ||||
| Image | ||||
| Audio | ||||
| Video | ||||
| Characters / scan | 25,000 | 75,000 | 150,000 | 150,000 |
| Image size | 5 MB | 10 MB | 25 MB | 50 MB |
| Audio length | - | - | 10 min | 60 min |
| Video length | - | - | 5 min | 30 min |
| Scan history | Forever | Forever | Forever | Forever |
| Per-sentence highlights | ||||
| Model attribution | ||||
| API access | ||||
| Support | Community | Email · 72h | Email · 24h | Priority · 4h |
FAQ
Common questions about the ai voice detector.
The ai voice detector is tuned against ElevenLabs v3, Suno v4 and Udio v2. New models are added to the ensemble within 30 days of release.
We benchmark at 99.1% accuracy on the RAID benchmark with a 1.2% false-positive rate for text, and 96.9-98.4% across image, audio and video. Every verdict ships with a confidence band so you know how certain the result is.
Edited prose, technical writing and ESL writing are common false-positive triggers for naive detectors. We tune against those failure modes specifically and surface confidence so a low-certainty AI verdict reads differently from a high-certainty one.
Yes. Every plan keeps every scan forever - Free included. There is no retention tier and never will be. You can delete an individual scan from /dashboard/history at any time.
No. Uploads are processed in-memory and never used to train detectors. We are SOC 2 in progress and ship a Data Processing Addendum.
Every signup gets $1 in scan credit, usable across every detector model - text, image, audio, video. There is no expiry while your account is active.
Yes - Starter handles 10 files at once, Pro 50 and Business 500. Drop a folder into the dashboard and we'll scan everything in parallel.
Yes - included on the Business plan. The API mirrors the dashboard, supports streaming results for long videos and ships an OpenAPI spec.
We don't sell humanisers, evasion or AI-paraphrasing. We're a verdict tool. If you want to bypass detection, this isn't the product for you.
Detector library
Other detectors you might need
Detection is multi-modal. The same scan and the same credit pool work across every tool.
Get $1 free credit - start scanning.
Lifetime scan history. Every plan. No retention tier.