Runway AI detector: was this video made with Runway?
Runway is the AI video tool behind many ads, music videos and short films, so its clips often look polished and professional. Paste a link or upload the clip: our video model, the frame check, the voice check and the visible-watermark check look at it together.
How well we catch Runway
- of 1,040 Runway test videos flagged as AI
- 95.3%
- called real by mistake
- 0.6%
- each clip tested as published, WhatsApp-quality, 360p and heavily compressed
- 4×
Our model flagged 95.3% of the Runway clips in our test (Gen-2 and Gen-3) and called 0.6% of them real. Gen-4 and later weren't in that test, so treat any single result as evidence and read the reasons shown. When a Runway watermark is visible, the result says so. Every AI tool's results (measured 2026-10-10).
Signs of a Runway video you can check yourself
- A small Runway watermark in a corner on clips from free plans (paid plans export without it, and re-posts often crop it).
- Short shots, usually 5 or 10 seconds, each with one smooth camera move, cut together into a longer video.
- Faces and hands that look sharp in close-up but lose detail or change shape as they move across the frame.
- Text, logos and signs that are almost readable but not quite.
None of these proves anything on its own: real videos have odd moments too, and the best AI clips have none.
Questions
- Can it detect Runway Gen-4?
- Gen-4 wasn't in our test set yet; Gen-2 and Gen-3 clips were flagged 95.3% of the time. Our video model looks at how the picture changes over time rather than one tool's quirks, which is how it caught 96.2% of clips from an AI family it never saw in training. Still, read the reasons with every result.
- Does it work on ads that mix real footage and AI shots?
- Yes. Paste the link or upload the file. Deep Scan checks every second of the video and shows the moments that look AI-made, alongside a real / real + AI / fully AI breakdown.
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