How can you tell if an image is AI-generated? Soon, there'll likely be a watermark.

• Distinguishing whether digital content was produced by a human or AI is a tough task these days.
• But seven Big Tech and AI companies just partnered with the White House to step up efforts to flag such content.
• The companies may soon roll out systems that watermark or identify the origins of AI-generated materials.

Chances are that you have either been fooled by — or at least done a double take at — AI-generated content in the last few months.

But the days of deception may be numbered. A coalition of tech giants and startups pledged Friday to watermark content produced by AI.