In a nutshell – no. At least, not yet! Services like Claude or ChatGPT have started adding “watermarks” to the content they produce in order to help identify whether it was created by AI or not. As of today, Google has not said anything about watermarked content getting a ranking penalty, but the risk is absolutely there.
AI providers are adding indicators into their content that can be picked up my machines, primarily because of new regulations out of the EU. These indicators give search engines a way to identify AI-generated content that they can use later. Website owners need to understand what that means and what it doesn’t mean.
Anthropic announces future Claude models will generate watermarked text.
What has changed because of AI watermarking?
Anthropic (Claude) announced its plans to start adding watermarks in August of 2026 because of the new EU regulations that were recently introduced.
This is not exclusive to Anthropic. Google introduced a system called SynthID for its Gemini model back in 2024. Anthropic says its watermarking is a version of SynthID and plans to apply it when new models launch.
How does AI watermarking work?
A text watermark isn’t a hidden code or anything attached when you copy/paste text to your website. It is a pattern the AI creates while it’s outputting words.
Language models often have a few different ways of putting together a sentence. The watermarking system uses a key to “guide” some of those word choices. One word may be picked over another. The meaning stays the same, but through long enough content, those “keys/words” form a pattern that can be detected. Make sense?
Anthropic has said that detection works better on longer content than it does on short sentences. Doing some manual light content editing may leave enough of that pattern to get detected. A full rewrite of the content could possibly remove it altogether.
How does this affect SEO today?
There’s nothing currently proving that Google deranks a page because its content has an AI watermark. Google has said that its system focuses on quality, not how it was created.
According to Google, AI content can help with research & structure. However, they also warn that carpet bombing a site with low-value, AI slop may violate their spam policy. Basically, AI content is allowed but using it to mass-produce pages that do not help people is no bueno.
How watermarks could come back to bite you in the future
No one can predict how search engines will rank AI content in the future. A blanket penalty is possible, but it would be like taking a sledgehammer to the problem. Just because content was generated via AI doesn’t mean it’s wrong or useless, so automatically deranking everything at once might not be the answer.
What could happen would be search engines could review these patterns across similar sites/pages, looking for content that was created only for gaming the search results. These watermarks could help identify these types of pages. How Google and other search engines will treat this content is still unknown. Personally, I’ve seen so many sites with the exact same content that I’d welcome a little clean-up!
There is also the trust aspect. Search engines might eventually start to serve users more details about how content was created. That could have an impact on click rates even if the rankings stay the same. Think of a Google search result with a little flag next to it that says “AI-generated”. Yuck…
Local service websites should pay attention!
Local service websites – landscapers, snow removal, plumbers, HVAC, etc.- often work with a small number of high-value pages. The homepage, service pages, location pages, portfolios, and contact details. When those pages become copies of competitors’ sites, the business not only loses personality, it becomes harder for potential customers and search engines to figure out why they’re relevant to an industry in a specific location.
Honestly, the biggest issue might not be that content is flagged as AI but that the site’s content isn’t unique to the business. A business could end up with service pages that make promises that can’t be fulfilled, location pages with duplicate content that only has the city name changed, incorrect service areas & hours, and garbage advice that nobody can use and was never reviewed.
That type of content creation is already a bit of a no-no according to Google’s current guidelines. It could get even more dicey if search engines start to prioritize non-AI-generated content.
So did the SEO game change?
Kinda. The rules haven’t changed yet, but if the past has taught us anything, it’s that SEO is very much a moving target. AI text is getting easier for machines to catch. And while Google has not announced any penalties for watermarks just yet, that’s not to say it could never happen.
If you want to use AI to create content, you’re still in the clear. My advice would be to make sure everything gets reviewed at the very least. Even better, use the content as a starting point and go through it and make it your own. The same content can be easily changed to fit specific businesses in different locations. Add your own voice, make it your own!