Are AI image detectors accurate?

Tools that read labels are accurate about what the file says, but they only work while the labels survive. Tools that guess from the pixels alone can be wrong in both directions, especially on edited or compressed images.

Does Instagram or Facebook keep AI labels?

Meta reads C2PA and IPTC labels on upload and may show an 'AI info' tag, but the copy people download often has the metadata removed.

Can I remove the AI label from my image?

We don't help remove AI labels to hide how content was made. Our Metadata Remover is for private details, such as GPS location, in your own photos.

Can you tell if an image is AI-generated?

By the Remove AI Watermarking team · Updated October 15, 2026

Short answer: Sometimes. Many AI tools label their images: OpenAI, Adobe Firefly, Google and Microsoft add C2PA Content Credentials, and Stable Diffusion tools save the prompt in the file. If those labels are still there, a free checker can read them. If a screenshot or a social app has stripped them, no reliable test remains.

Key facts

OpenAI has added C2PA Content Credentials to its generated images since February 2024.
The IPTC 'trainedAlgorithmicMedia' value is the standard way to mark an image as made by generative AI.
Stable Diffusion apps such as Automatic1111 and ComfyUI often save the full prompt and settings inside PNG files.
Google's SynthID is an invisible watermark in the pixels. Since November 2025 the Gemini app can check images for it.
A screenshot or a re-save usually removes metadata labels, so a missing label is not proof an image is real.

Step 1: read the labels in the file

Drop the image into our AI Detector. It reads Content Credentials (C2PA), the IPTC digital source type, generator settings saved in PNGs, camera make and model, and the editing software named in the file. When a generator is named, you see it in plain words, such as ChatGPT, Adobe Firefly or Midjourney.

Step 2: check for an invisible watermark

Some companies hide a watermark in the pixels instead of, or as well as, the metadata. Google's SynthID is the best known. Only the company's own checker can read it, so upload the image to the Gemini app and ask whether it was made with Google AI. That only covers Google's tools.

Step 3: look at the image and its source

Visual clues such as odd hands, melted text or warped backgrounds are less reliable than they used to be, because newer models make fewer of these mistakes. Where the image first appeared, who posted it and whether other sources show the same scene usually tell you more.

What the results mean

AI label found: the file says AI was used. Labels are written by the software, so they are usually accurate, though anyone can edit metadata.
Content Credentials with no AI step: a provenance record exists and doesn't mention generative AI.
Camera data present: a hint the photo came from a camera, but camera details can be copied or faked.
Nothing found: the file makes no claim either way. That is common for screenshots and images saved from social media.

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