Left: the watermark GPT Image 2 embeds into every image it generates.
Right: SynthID, the fingerprint Google bakes into every Nano Banana and Gemini image.
Invisible to the human eye. Applied during generation, not added after. Designed to survive screenshots, crops, and compression.
Most people using these tools daily have no idea their output is fingerprinted at the pixel level. Every major AI image generator now tags what it produces, and the tag travels with the image wherever it ends up.
You can verify this yourself. Content Credentials Verify detects C2PA markers from OpenAI images. Gemini detects SynthID if you upload an image directly to it.
The images will keep getting more realistic. The identification tech is keeping pace.
I extracted the gpt-image-2 watermark!
testing it on different types of images now