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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Upload the image to Gemini and ask whether it was created or edited by Google AI. Gemini checks for Google’s SynthID watermark. A positive result indicates Google AI was involved in creating or editing all or part of the image; a negative result does not rule out an image made with another AI system.
Check an image in Gemini
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Open Gemini on the web or in the app and sign in with a personal account or a qualifying Google Workspace account. If you use the mobile app, Google says to install its latest version.
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Upload the image, preferably the original file rather than a screenshot or re-saved copy. Gemini checks one file at a time, with a maximum file size of 100 MB.
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Ask a direct question, such as “Was this image created or edited by Google AI?” or “Is this AI-generated?”
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Read the response as a check for Google AI involvement—not as a universal test for AI-generated images. A detected SynthID watermark is evidence that Google AI created or edited at least part of the image. No detected watermark means Gemini did not identify that signal; other AI systems may still have been used.
Google’s current instructions and account, file, and usage limits are listed in its Gemini Apps Help page. Limits and availability can change.
What a SynthID result can—and cannot—tell you
SynthID is an invisible watermark embedded in content generated by Google AI models. Gemini uses it to check specifically for Google AI, rather than to identify every image made with AI.
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Watermark detected: Google says all or part of the image was created or edited by its AI models. The result does not mean every element in a composite image was AI-made.
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No watermark detected: Gemini did not detect Google’s watermark. That does not establish that the image is human-made or rule out another AI system.
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Unclear result: Google says there may not be enough detail to watermark an image, as with a very simple or abstract image, or an edit may be too small to carry a detectable watermark. The watermark usually survives changes such as resizing, recoloring, and compression, but repeated or extensive alterations can make detection harder.
How Content Credentials differ
Gemini may also summarize Content Credentials when compatible credentials are present. These can describe an asset’s origin, composition, and edit history, including AI or non-AI tools. They are a provenance record, not proof that a file is AI-generated.
Google’s help page lists Content Credentials verification on gemini.google.com and the Android Gemini app; it describes iOS support as forthcoming. Availability can change. Google’s May 19, 2026 update said C2PA Content Credentials verification was rolling out in Gemini and would come to Search and Chrome in the coming months. That was a dated rollout statement, not a guarantee of availability on every device, account, or region.
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What to do if Gemini’s answer is unclear
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Keep the original file if you have it. Screenshots and re-saved versions may have lost metadata or undergone changes that complicate checks.
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If you are checking a screenshot, crop tightly around the image. Google advises against submitting a collage of distinct images.
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Try reverse image search to look for an earlier or similar version of the image.
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Inspect the original file’s metadata, if available. EXIF data may include a camera model, date, settings, or editing software, but metadata can be missing or changed.
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Look for visual clues such as garbled text, inconsistent lighting or shadows, errors in small details, or unnaturally repeated patterns. These are leads for further checking, not reliable proof by themselves.
Availability and usage limits
Google’s Gemini Apps Help page describes the following limits for signed-in users. The page’s current terms are the authority if these details change.
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Images: one file per check, up to 100 MB; the page describes an approximate rolling 24-hour quota of 10 image checks.
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Video and audio: these are also supported by the verifier, with separate limits: video must be under 90 seconds and audio under one hour. The page describes approximate rolling 24-hour quotas of 10 video checks, up to five minutes total, and 10 audio checks, up to three hours total.
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Google reported on May 19, 2026 that Gemini’s SynthID verification had been used 50 million times globally. The company also said more than 100 billion images and videos, and 60,000 years of audio, had been watermarked with SynthID by that date. These are Google-reported figures, not independent measurements; the same update discussed expanding verification to Search and Chrome.
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