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Firefly image checks

Adobe Firefly Detector

Adobe Firefly attaches Content Credentials to generated images, and this Firefly detector reads them. Slop or Not verifies signed C2PA provenance that can name Firefly directly, then falls back to visual detection when the credential was stripped, without passing online uploads to outside AI companies.

The only AI image detector that reads Google DeepMind's SynthID watermark from both Google and OpenAI images.

Google's own detector checks only Google's images. OpenAI's checks only OpenAI's. Slop or Not reads both.

Download on the App Store
  • You can testPhotos, screenshots, product images, receipts, and profile pictures up to 8 MB.
  • ResultA probability verdict, AI score, and source details when the file carries them.
  • PrivacyDeleted the moment the check finishes. We never keep your photo.

AI detection is probabilistic. Results can vary with new AI models and evasion methods. A real photo edited with AI tools can be flagged as AI.

Online checks are deleted after processing.

What it checks

Verify Firefly Content Credentials, Then Check the Pixels

Signed C2PA Content Credentials that can name Adobe Firefly as the generator

IPTC or app metadata left by Adobe tools when the file carries it

Visual classifier evidence when exports or screenshots removed the credential

Good Uses

  • Verifying whether stock or campaign art came from Firefly
  • Checking that a delivered asset still carries its Content Credentials
  • Reviewing images made with Firefly-powered generative tools

Limits to Know

  • Content Credentials can be stripped by screenshots, exports, or re-encoded uploads
  • A missing credential downgrades the check to a probability, not proof either way
  • Heavy edits after generation can blur both provenance and visual evidence

FAQ

Adobe Firefly Detector Questions

Do Firefly images include Content Credentials?

Adobe attaches C2PA Content Credentials to Firefly-generated images. When the file still carries them, Slop or Not reads the signed record, which can name the Adobe tool that created the image.

Can Slop or Not tell that an image came from Firefly?

Yes, when the Content Credential survives. A signed Firefly credential is stronger evidence than any pixel score. If the metadata was stripped, the detector falls back to visual analysis and reports a probability instead.

What if the credential was stripped?

Screenshots, exports, and re-encoded uploads can remove C2PA metadata. Slop or Not then checks the pixels and reports a probability. A missing credential is weaker evidence, not proof that a person made the image.

Run the Next Check on Your iPhone or Mac

The Slop or Not app checks images and text on-device, so nothing you check ever leaves your device.

Download on the App Store

Related checks

Compare Related Detector Workflows

C2PA Detector

Use this C2PA detector to check Content Credentials with Slop or Not. It reads signed provenance, then checks pixels when credentials are absent.

AI Watermark Detector

Use this AI watermark detector on images for SynthID, C2PA, and IPTC evidence, or check writing with the RAID-scored text detector.

AI Image Detector

Use Slop or Not as an AI image detector when the source is unknown. It checks SynthID, C2PA/IPTC metadata, and pixels before reporting a result.