Google Veo · Gemini · Flow
Veo video detector
Check whether a video was generated with Google Veo 3 or Gemini. We read its Content Credentials and scan the frames — privately, in your browser.
- 100% free
- Unlimited checks
- No upload — runs on your device
- No sign-up
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- File & Content Credentials
- Frame sampling
- AI model
- Visual analysis
Verdict
Evidence
File details
No detector is 100% accurate. Treat this as one piece of evidence, not proof. How the score works.
How Google labels Veo videos
Google uses three layers. Every Veo video gets an invisible SynthID watermark woven into the pixels, plus C2PA Content Credentials in the file. Many also carry a faint “Veo” text mark in the bottom-right corner — though since 2026, Gemini and Flow users can turn that visible mark off.
IsThisVideoReal reads the Content Credentials directly. If they’ve been stripped by a re-upload, we fall back to the visual model and file forensics. For a definitive SynthID answer, you can also upload the clip to the Gemini app and ask whether it was made with Google AI.
Veo 3 tells to look for
- Perfect audio, imperfect sense. Veo 3 generates dialogue and ambient sound. Listen for lines that don’t follow, or background noise that loops.
- “Man on the street” interviews and news segments. A popular Veo format. Check microphones, logos and lower-third text for garbled lettering.
- 8-second shots. Veo’s default clip length shows up as hard cuts every ~8 seconds.
- Bottom-right corner. A faint watermark, or a suspicious crop/blur where one used to be.
FAQ
How do I know if a video was made with Google Veo?
Look for the small “Veo” watermark in the bottom-right corner, check the file for Content Credentials, and for certainty use Google’s own SynthID check in the Gemini app. Our detector covers the metadata and visual side.
Can this tool detect SynthID?
No. SynthID is an invisible watermark that only Google’s detector can read. We read the C2PA Content Credentials Google adds alongside it, which survive as long as the file hasn’t been re-encoded.
Do all Veo videos have a visible watermark?
Not any more. Google added a visible mark to most Veo videos in 2025 and later let Gemini and Flow users switch it off. The invisible SynthID watermark and C2PA metadata stay embedded either way.