Runway Detector
Detect Runway Gen-4 generations and motion-brush composites. Frame-coherence checks plus cross-model ensemble. 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 video
MP4 or MOV up to 50 MB on Pro, 30 minutes on Business. We sample frames automatically.
Frame + temporal
Frame-by-frame classifier plus temporal-coherence checks across motion, lighting and shadow consistency.
Frame-level verdict
Get the verdict, confidence band, suspected model (Veo 3.1, Kling 3.0, Runway) and the specific frames that triggered the call.
What the runway 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.
- 01/06VideoRunwayRunway Gen-4release Gen-4ActiveLatent flicker
Accuracy & methodology
Benchmark first. Hype never.
We benchmark at 96.9% accuracy across Veo 3.1, Kling 3.0 and Runway Gen-4 generations, with a 2.4% false-positive rate. The pipeline combines frame-by-frame analysis with temporal-coherence checks across motion, lighting and shadow consistency. Sora was discontinued April 2026 and is not in the active model set.
Use cases
Who uses it.
Newsrooms
Verify viral clips before broadcast. Detects Veo 3.1 and Kling 3.0 frame-by-frame.
Trust & safety
Flag deepfake political content and impersonation. Temporal-coherence analysis catches frame-perfect generations.
Ad fraud
Audit user-generated video creative for synthetic generation. Pair with image and voice detectors for full coverage.
Insurance & legal
Verify video evidence in court filings and claims investigations.
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 runway detector.
The runway detector is tuned against Runway Gen-4. 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.