This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: Imagine a manager sends a thoughtful message to one of her hard-working employees after a particularly exhausting week in the office. The message communicates personal warmth, but when the recipient discovers it was generated by AI, it somehow feels less genuine.
In the past, the recipient would have discovered AI use only if the sender disclosed it or through a lucky guess. Now, the European Union's new transparency rules require companies to watermark content produced by generative AI systems in a machine-readable format. Systems already on the market have until December 2026 to comply.
OpenAI reportedly developed such a watermarking system for ChatGPT years ago but held it back for fear of alienating users. Google now uses a watermarking system called SynthID in its proprietary AI models. Recently, Anthropic followed suit, announcing that content generated through its Claude models globally will contain an invisible watermark.
In other words, whether you reside in the EU, Canada or elsewhere, your AI use will no longer remain private or undetectable. As researchers studying the impact of AI on learning, including its relational and emotional dimensions, this development concerns us deeply. Recent research demonstrates that although many people can't tell whether a personal message was written by AI, their perception of the sender changes the moment they learn it was AI-generated.
We tend to read the time and effort someone puts into their writing as signals that we matter to them. When that work is outsourced to a machine, it feels like some of that care is no longer there, even when the underlying emotions are genuine. But the process of watermarking AI also feeds into an already prevalent culture of surveillance.
This is especially evident in workplaces, where employees are more willing to accept a manager's use of AI for a routine scheduling note than for a personal message that offers praise or feedback. In the latter case, the manager's sincerity is more likely to be questioned. Watermarking makes this evaluative judgment available on demand.
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