Two of the plaintiffs are under 18, and all three are withholding their names to protect their privacy.
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It comes after its AI chatbot Grok was linked to the creation of sexually explicit deepfake images of real people.
Over 20,000 Grok-generated images were predominantly women, with around two per cent minors.
Is there anything we can do legally, at the moment, to protect ourselves?
It comes following concerns the chatbot is generating sexual deepfakes.