Verify OpenAI-generated content

Upload an image or audio file to check for signals that it was generated with OpenAI tools.

Upload a fileDrag and drop or click to upload a file.Supported formats: PNG, JPG, WEBP, MP3, WAV, AAC, FLAC, OPUS, PCM

By uploading a file, you agree to our Terms and have read our Privacy Policy.

What does this tool do?

This tool checks whether an uploaded file contains provenance signals associated with OpenAI tools. It looks for supported signals, including C2PA metadata and SynthID watermarks, and reports whether they are detected.

What content can it detect?

The tool is designed to detect content generated with ChatGPT, the OpenAI API, or Codex. It currently supports images and audio files. Other content can be uploaded, but OpenAI provenance signals will only be detected if it was generated with our tools.

How do I use it?

Upload a single file, then review the results to see whether the tool detects C2PA metadata, a SynthID watermark, or no supported signal.

Verify content with the API

Integrate content verification into your products or workflows using the OpenAI API.

View API documentation

FAQ

Provenance helps people understand where online content came from and whether AI was involved in creating or editing it. This gives people more information when deciding what to trust, share, or report online.

It can help reduce confusion, deception, and cases where the origin of AI-generated content is unclear. It also gives journalists, platforms, creators, researchers, and the public more context about the media they encounter online.

We believe clearer information about how content was created is an important part of building a more trustworthy online environment.

The tool relies on two types of signals: C2PA Content Credentials and SynthID.

Content Credentials⁠(opens in a new window) are based on an open standard that attaches provenance metadata to digital media. For supported OpenAI-generated content, they can indicate that a file was created using tools such as ChatGPT, Codex, or the API. They are a strong signal when present, but because they rely on metadata, they can be removed.

SynthID⁠(opens in a new window) is an invisible watermarking technology that embeds a signal directly into generated media. Unlike metadata, the signal is part of the content itself and is designed to stand up to modifications like cropping, adding filters, or lossy compression. For more technical details, see the SynthID research paper⁠(opens in a new window).

If no signal is detected, it means the tool did not find supported signals in the uploaded file.

The content could still have been generated by OpenAI if its metadata was stripped or tampered with, its watermark was degraded, it came from a legacy generation model, or it was created before provenance signals were available. Content could also still be AI-generated by another company’s model, which the tool currently does not detect.

We believe clearer information about how content was created is an important part of building a more trustworthy online environment.

The tool relies on two types of signals: C2PA Content Credentials and SynthID.

If no signal is detected, it means the tool did not find supported signals in the uploaded file.

Verify OpenAI-generated content

What does this tool do?

What content can it detect?

How do I use it?

Verify content with the API

FAQ

Why does provenance matter to OpenAI?

What supporting evidence does the tool use?

What does a detected signal mean?

Can the tool detect content modifications?

Can this tool tell if content is inaccurate or misleading?

What are best practices for using the tool?

What if no signal is found?

I’m having trouble using the tool.

What happens to the file I upload?

What terms apply when I use the tool?

I’m a developer—can I verify content through an API?