Google SynthID comes to Chrome, Search, and ChatGPT. Users can right-click to check for AI content.

Source: Mashable Tech

We live in a world where people need the ability to quickly and accurately identify AI-generated content. At Google I/O 2026, Google announced a massive expansion of its SynthID digital‑watermark initiative.

Expansion of SynthID

Integration with Chrome and Search

Google is adding the Google DeepMind SynthID tool, along with content‑credential verification from the Coalition for Content Provenance and Authenticity (C2PA), to Google Search and the Chrome browser. In the Gemini app, C2PA Content Credentials verification will be available starting today.

C2PA Content Credentials

C2PA verification is provided as metadata that describes the provenance of an image, audio file, or video. By pairing this with SynthID’s invisible watermark, users can more easily check whether a piece of media was generated by AI—even when metadata is stripped.

Scale of Watermarking

Since launching SynthID, Google reports that it has watermarked more than 100 billion images and videos, as well as 60 000 years of audio content.

Adoption by Other Companies

Google also announced that OpenAI, Kakao, and ElevenLabs will incorporate SynthID into their products. For example, an image created with OpenAI’s ChatGPT should be watermarked with SynthID moving forward.

SynthID in action. Credit: Screenshot: Google

How It Works

Both SynthID and C2PA help users detect AI‑generated content:

• C2PA supplies detailed context via metadata.
• SynthID embeds an invisible watermark that can survive transformations such as screenshots, even when metadata is lost.

“These two systems reinforce each other. C2PA helps content carry detailed context; SynthID helps preserve a signal when metadata does not survive,” a Google press release explained. “Watermarking can be more durable through transformations like screenshots, while metadata can provide more information than a watermark alone. Together, they make provenance more resilient than either layer would be on its own.”

User Experience

With the new tools, users can simply right‑click on an image (or use the “search by image” feature) in Chrome or Google Search and ask, “Was this generated with AI?” Google will return a clear response along with any available provenance information.

“We want to make sure more people have easy, seamless access to these tools. So, we are expanding both content credentials and SynthID verification to Google Search and Chrome,” Alphabet CEO Sundar Pichai said in a briefing ahead of I/O.

Disclosure

Ziff Davis, Mashable’s parent company, filed a lawsuit against OpenAI in April 2025, alleging that OpenAI infringed Ziff Davis copyrights in training and operating its AI systems.