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AI Image Tools and Metadata: Every Guide in One Place
Every AI image tool records its involvement differently. These guides explain what each one stores, what a metadata tool can and can't change, and how to stay on the right side of the rules.
Published by Harsh Raj · Last reviewed November 2026
How each tool marks its images
| Tool | What's been reported |
|---|---|
| ChatGPT | C2PA metadata and a SynthID watermark |
| Gemini | SynthID, plus Content Credentials on newer models |
| Midjourney | An AI source tag, and prompt details in the file |
| Stable Diffusion and ComfyUI | Prompts and workflows in PNG text |
| Adobe Firefly | Content Credentials |
| Meta AI | IPTC metadata, an invisible watermark, and a visible marker |
Each guide below links to its sources, and tools change often, so scan your own file to see what it holds today.
Start here
AI tools can mark an image in three ways: Content Credentials or IPTC tags in the file, prompts and settings saved as text, and invisible watermarks in the pixels. Only the first two are metadata. Start with the overview, then read the page for the tool you use.
Start here
- What metadata do AI image tools add?
An overview, tool by tool.
- Can you remove an AI watermark?
Why metadata tools cannot.
By tool
- ChatGPT images
C2PA and SynthID.
- Gemini and Nano Banana images
What Google adds.
- Midjourney images
Prompts and usernames.
- Stable Diffusion and ComfyUI
Prompts and workflows in PNG files.
- Adobe Firefly and Meta AI
What each adds, and Adobe's terms.
Rules and records
- Is it legal to remove AI labels?
India, the EU, the US, and platform terms.
- What is C2PA?
Content Credentials explained.
- Checker vs Content Credentials Verify
Which one you need.
Before you share an AI image
- Check what the file records, including any prompt.
- Keep your original, with its records.
- Keep Content Credentials where the tool's terms require it.
- Disclose AI use where a platform, client, or law asks for it.
- Don't present an AI image as a real photo.
A tech enthusiast who builds and tests EraseAILabel's tools. How we test
Common questions
Do all AI images contain metadata?
No. It depends on the tool, and many images lose their records when they are re-saved.
Can removing metadata make an AI image undetectable?
No. Watermarks, visual detectors, and the image itself can still show that AI was used.
Check a photo now
See what it reveals, on your own device.