Gemini 3.5 Flash and Exported Assets
While the original uploaded file and the one returned in an editing process are not necessarily of the same provenance, the latter should be saved to file in order to determine which is its real format. With image models, see the "Nano Banana Family" page for more details, while the audio/video model formats have separate pages.
Is every attachment generated by Gemini?
No. The attachment may be user-uploaded or taken from any other third-party system.
Check the Watermark in Your File
Determine the image, video and audio models which have resulted in the creation of your file. A watermark review for media does not consider the origin of a written answer.
The model name is not an indicator of SynthID in the image. Results will depend on the particular image you use. SynthID remover cannot be guaranteed to work for all kinds of AI labels or image provenance information.