Imagen

At a glance

Images

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

Not stated. None of Google's pages listed under Sources read says so.

No Imagen model appears in Google Cloud's list of models whose output is signed with Content Credentials.

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

In May 2025 Google said SynthID covers content from its Imagen models, among others. Gemini API documentation now says Imagen models are shut down and no longer available in the Gemini API.

SynthID Detector — a new portal to help identify AI-generated contentGoogle (The Keyword blog)

Quoted passage body

While originally focused on AI-generated imagery only, we’ve since expanded SynthID to cover AI-generated text, audio and video content, including content generated by our Gemini, Imagen, Lyria and Veo models across Google. Over 10 billion pieces of content have already been watermarked with SynthID.

Generate images using Imagen, Gemini APIGoogle AI for Developers

Quoted passage page body

Imagen models are shut down. Use Nano Banana for image generation. Imagen is Google's legacy image generation model. It is now shut down and no longer available in the Gemini API.

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 Google's pages listed under Sources read says so.

No Google page read names an IPTC Digital Source Type term for its outputs.

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

Not stated. None of Google'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 Google's pages listed under Sources read says so.

Limits and detection

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

Google said on October 7, 2026 that its SynthID Detector is available to everyone, globally in English.

We're making it easier to identify AI-generated content globally.Google (The Keyword blog, Africa edition)

Quoted passage body

Since launching Google SynthID in 2023, we've helped people identify AI-generated media using imperceptible watermarks across images, video, and audio. To date, we've watermarked over 180 billion images and videos, along with 240,000 years of audio content." "Last year, we introduced an early version of the SynthID Detector to help media professionals verify AI-generated content. Now, we’re expanding access to everyone – with the tool available globally in English starting today.