FLUX (API and Playground)

At a glance

Images

Content CredentialsA signed record (C2PA) of how the file was made, sealed so any change shows.

In its knowledge-base article as archived on June 7, 2026, Black Forest Labs said all images generated through the BFL API and the BFL Playground include C2PA metadata.

The live article could not be read on October 19, 2026, so this entry rests on the archived copy. Black Forest Labs does not state the signer or a start date.

C2PA in FLUX generated Images (Black Forest Labs Knowledge Base)Black Forest Labs

Quoted passage Does BFL include C2PA metadata?

Yes. Images generated through the BFL API and Playground include C2PA metadata. API: All images generated via the Black Forest Labs API Playground: All images generated in the BFL Playground

Invisible watermarkA signal woven into the pixels, frames, audio or wording, meant to survive copying.

Not stated. None of Black Forest Labs's pages listed under Sources read says so.

Black Forest Labs' Developer Terms define Content Credentials to include digital watermarks, but no Black Forest Labs page read says it applies an invisible watermark to API or Playground output.

AI label in metadataA plain metadata field (IPTC Digital Source Type) saying AI made the content. Anyone can add or remove it.

Not stated. None of Black Forest Labs's pages listed under Sources read says so.

Visible markA mark you can see, such as a logo or a sparkle in a corner.

Not stated. None of Black Forest Labs's pages listed under Sources read says so.

Tool named in metadataThe tool or model written into ordinary file fields, such as Software or Creator.

Not stated. None of Black Forest Labs's pages listed under Sources read says so.

The API documentation does not describe provenance fields.

Limits and detection

Checking tool from the makerA way the maker offers to check a file for its traces.

In its knowledge-base article as archived on June 7, 2026, Black Forest Labs pointed users to Content Credentials Verify, which it said would show provenance information identifying an image as created with its FLUX models.

Black Forest Labs' archived article points to Content Credentials Verify; the article does not say who operates it. The live article could not be read on October 19, 2026.

C2PA in FLUX generated Images (Black Forest Labs Knowledge Base)Black Forest Labs

Quoted passage Verifying an image (archived copy, 2026-06-07)

You can check if an image was generated by FLUX using Content Credentials Verify . Upload the image and the tool will display provenance information showing it was created with Black Forest Labs' FLUX models.

What the maker says about limitsIn the maker's own words.

In its knowledge-base article as archived on June 7, 2026, Black Forest Labs said C2PA metadata is not foolproof: screenshots, social media uploads and image editing often strip it, and an image without C2PA metadata may or may not have been AI-generated.

C2PA in FLUX generated Images (Black Forest Labs Knowledge Base)Black Forest Labs

Quoted passage Important limitations

C2PA metadata is not foolproof: It can be removed: Screenshots, social media uploads, and image editing often strip metadata Absence doesn't prove anything: An image without C2PA metadata may or may not have been AI-generated

What the maker says about limitsIn the maker's own words.

As of August 2026, Black Forest Labs' Usage Policy, Developer Terms and Website Terms bar users and developers from removing or interfering with C2PA credentials, digital watermarks, AI content marking or other provenance metadata attached to outputs. The Developer Terms also bar telling others that outputs are free of provenance metadata.

Usage Policy (Black Forest Labs)Black Forest Labs

Quoted passage List of prohibited uses

circumvent, remove, alter, suppress, or otherwise interfere with any C2PA Credentials, digital watermarks, or other content provenance signals attached to, embedded in, or otherwise associated with Outputs, or develop or distribute any tool designed to facilitate such interference.

Developer Terms of Service (Black Forest Labs)Black Forest Labs

Quoted passage Definitions, c); Restrictions, i)

"Content Credentials" means machine-readable content provenance metadata or digital watermarks embedded in or attached to Outputs pursuant to the C2PA or similar technical standard(s), recording the AI system that generated the content and its generation history." "Remove, disable, alter, obscure, any Content Credentials or represent to End Users or third parties that (i) Outputs are free of content provenance metadata or (ii) any Task or Output was human-generated;

Website and FLUX Terms of Service (Black Forest Labs)Black Forest Labs

Quoted passage 1.3 Restrictions On Your Use of the Services, (p)

(p) intentionally remove, disable, obscure, tamper, falsify circumvent any AI content marking or labelling or transparency metadata attached to Your Content, unless permitted by applicable law or otherwise; or