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Label your AI output before it ships.

Encypher adds a label software can read to each answer, picture, or file your model makes. Anyone can check it for free.

Try a marked answerAsk about media files
Copies of a news story, photos, and chat answers spread across the screen, and the name tags slide off them.
  1. Copies of a news story, photos, and chat answers spread across the screen, and the name tags slide off them.

    The law asks for a label.

    The EU AI ActEU AI Act: The European Union's law on artificial intelligence, which includes rules for marking AI-made content. asks for labels software can read on AI content from August 2, 2026. Tools already on sale in the EU have until December 2, 2026.

  2. A needle sews a gold thread under the sentence The pool opens Monday, and the stitches fade from sight.

    Mark adds it after your model.

    Send the finished answer or file. Mark signs it and can add a watermarkWatermark: A mark placed in the content itself, visible or hidden, so it can be found again after the file is copied.. Your model call stays the same.

  3. A chat answer with a gold tag on a thread that reads Made with AI: Yes.

    The label carries the AI declaration.

    It names the signer, records what they declared about AI use, and shows if it changed.

  4. A magnifier rests on the unbroken blue Encypher badge, and a check mark appears beside it.

    Your customers can check it.

    Anyone opens the result and runs a free check, with no account.

    See real signed examples

See it work before you sign up.

Start in three steps.

  1. Run the text sample.

    No account and no card.

    Try a marked answer

  2. Mark 1,000 outputs a month free.

    Free labels carry the Encypher name. Your own name comes with a paid plan, once we accept your proof of identity.

    See Mark pricing

  3. Check what your reviewer gets.

    Fix any failed or missing check before you roll out.

Good questions.

Does this make us compliant?
It gives you the labels and the records. Your legal team decides which duties apply to you and whether you meet them.
Does the watermark survive every edit?
No watermark survives every edit, resize, or re-encode. Watermarks also cover fewer formats than signing. The check reports what it finds in the copy it gets.
Which C2PA version do you sign with?
C2PAC2PA: The Coalition for Content Provenance and Authenticity: the group that publishes the open standard for content labels. 2.4 by default. Support varies by format: 76 of our 79 formats list it today. Our formal conformance record covers C2PA 2.2 over 20 media typesMIME type: The standard name for a file format, such as image/jpeg or audio/wav, that software uses to decide how to read a file.. It is not a 2.4 pass.
What about images, audio, and video?
Mark signs those too. Tell us your formats and how you deliver them. Ask about media files.
Why would a checker trust your label?
Encypher wrote C2PA's standard for signing text, which is how Mark labels an AI answer. Our signing product is on the official C2PA Conforming Products ListConforming Products List: The C2PA's public record of products that passed its conformance program.. See the public record.

Keep reading

Create. Mark. Endure.

Mark one real output, then plan the rollout.

Create a free accountTry a marked answer