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Your child has asked an AI something. This can become a shared conversation about answers, private details and trust. Five questions and a small exercise help you get started, even if you don't know every app.

The answer is already in the chat. Whether you can explain it yourself becomes clear when you close the screen. Two studies suggest that the kind of help matters – and why a prompt alone does not make a good tutor.

You want to understand AI without signing up for a subscription. Three free German-language courses offer different routes: a short overview, foundations with exercises, or material for teaching.

Upload images, describe details and transcribe text: four prompts for ChatGPT, Claude and Gemini, with steps for checking the answers.

A similar-looking interface can be impressive. A useful, working application takes more to establish.

A likeable profile can be entirely fictional. What matters is who is behind it and what you can verify.

A question to the AI, an AI in the group, or Private Processing: what WhatsApp’s help pages describe and what remains unverified for Germany.

Clear AI instructions, a prompt to copy and two small trials: when told to ask questions first, Claude Fable 5 and GPT-6 Astra each asked exactly one question instead of drafting a message straight away. One run per case; no security test with connected accounts.

We asked the image tool to turn only the blue mug red in an AI-generated image. The scene stayed recognisably the same, but colour values outside the mug changed too. A single trial with images and a prompt to copy.

A familiar website can become a risk because of a PHP flaw. What operators need to fix, five steps you can take, and what we checked at Hexpex.

What GretchenAI aims to check in images and videos, where errors can arise and why an AI result is not a final verdict.

Five updates on Siri, AI assistants, translation and scam alerts. What has been announced, and what remains unclear.

Shorten pauses, remove false starts and highlight details: a demonstration with Claude and Borumi shows what editing by instruction can look like.

AI assistants can work on parts of a task in parallel. An example explores when that might help and how to keep track of the result.