Google Launches Free Tool to Identify AI-Generated Images, Videos and Audio

# Google Launches Free Tool to Identify AI-Generated Images, Videos and Audio

Google has made its SynthID Detector available to the public, giving users a new way to check whether images, videos and audio files contain digital watermarks associated with artificial intelligence.

The tool was developed by Google DeepMind and was initially tested with journalists, researchers and media professionals. Its wider release aims to make it easier for people to investigate the origins of digital content at a time when AI-generated media is becoming increasingly realistic.

The service is available globally in English and is designed to help users gain more context about the media they encounter online.

What Is Google's SynthID Detector?

SynthID Detector is an online verification tool that searches uploaded media for an invisible digital watermark known as SynthID.

Google developed this technology to identify content created using compatible AI systems. Unlike a visible logo or label, the watermark is embedded into the media and is designed to remain detectable even after certain types of editing or compression.

Users can submit supported image, video or audio files for analysis. If the system identifies a SynthID watermark, it can provide an indication that the content was generated using a compatible AI tool.

The technology is already used across several Google AI products, including systems for generating images, videos and audio.

Which File Types Are Supported?

The detector supports multiple formats across different types of media.

For images, supported formats include JPG, PNG, GIF and TIFF, among others. Video formats include MP4, MOV and WEBM, while audio formats include MP3, WAV, FLAC, AAC and M4A.

This range of formats makes the service useful for checking different kinds of digital material without requiring users to convert every file into a single format first.

Users should consult the tool itself for the current list of supported formats and any upload restrictions.

How Does the Technology Work?

SynthID embeds a digital watermark into content generated by compatible AI systems. The watermark is designed to be difficult for people to notice during normal viewing or listening.

The detector then analyses the submitted file to determine whether it contains that watermark.

According to Google, the technology has been applied to more than 180 billion images and videos, as well as audio content equivalent to approximately 240,000 years.

The company has also integrated verification features into services such as Google Search, Gemini and Chrome, expanding the ways users can obtain information about digital content.

Can It Detect Every AI-Generated Image or Video?

There is an important limitation: SynthID Detector is not a universal AI detector.

The tool looks for watermarks associated with compatible systems. If a file was generated using an AI model that does not use SynthID, the detector may not identify it.

Therefore, a result that does not identify a watermark should not be treated as proof that the content was created by a human.

Similarly, detecting a watermark does not automatically mean that a piece of media is misleading or fraudulent. AI-generated content can be used for legitimate purposes, including entertainment, education, design and creative production.

The tool is best understood as one source of evidence rather than a definitive way to establish whether every digital file is authentic.

Why Does This Matter?

AI-generated images, videos and audio are becoming easier to produce and increasingly difficult to distinguish from authentic recordings.

This creates challenges for journalists, researchers, businesses and ordinary internet users who want to understand where a piece of media originated.

A verification tool can help users investigate suspicious content before sharing it. It may also support newsrooms and researchers when examining media whose origin is uncertain.

However, digital verification still requires careful judgment. Source credibility, publication history, context and independent confirmation remain important when evaluating potentially misleading content.

How to Try SynthID Detector

Users can visit Google's SynthID website and follow the instructions to submit a supported image, video or audio file for analysis.

The public release is available globally in English. Access requirements and supported features may vary, so users should check the official website before uploading content.

Official website: https://synthid.com/

A Step Towards Greater Transparency

Google's decision to open SynthID Detector to the public reflects growing interest in tools that help people understand how digital media is created.

The technology offers a practical way to look for AI-related watermarks, but it does not eliminate the wider challenges of verifying information online.

As generative AI continues to evolve, watermarking and verification systems could become increasingly important parts of the digital media ecosystem.

For users, the key takeaway is simple: tools such as SynthID Detector can help investigate the origins of content, but their results should be considered alongside other evidence rather than treated as a final verdict.

Source: SAPO HR Portugal and Google DeepMind. Independently adapted for NexaPulse.