FAQ · AI content & watermarks
Yes — Sora adds a visible sparkle plus a C2PA block, an XMP trainedAlgorithmicMedia flag and an OpenAI generator ID in the metadata.
Yes. OpenAI’s Sora stamps every export with a visible animated sparkle in the corner, plus three hidden signals: a C2PA Content Credentials block that cryptographically proves AI origin, an XMP DigitalSourceType=trainedAlgorithmicMedia flag, and an OpenAI generator identifier in the EXIF metadata. The visible sparkle is easy to crop, but the metadata and encoder fingerprint survive cropping and basic re-encoding — which is what gets Sora clips flagged by Instagram, TikTok, YouTube and others. Removing all of them, then injecting a real phone identity, is what lets a Sora video post without an AI label.
Related on Calabi: Does Instagram detect AI images? · How do I remove C2PA metadata? · Does cropping remove a watermark? · How to post AI content on Instagram without getting shadow-banned · Sora — or just open the tool.