Diese eine ChatGPT Funktion verändert wirklich alles

18 Feb 2026 · 7 min
7:07

In this short German-language video, business coach Michael Heitkötter showcases a little‑known ChatGPT feature called Mentions, activated with the "@" symbol. He explains that Mentions lets users switch on‑the‑fly between three kinds of resources while staying inside a single chat: (1) connected third‑party apps such as Canva or Google, (2) custom‑built GPT assistants (Custom GPTs) that perform specialised tasks, and (3) personal Projects that store previous chats and assets. He demonstrates the workflow with concrete examples – using a custom Buzzword‑Explainer GPT to define AI buzzwords, then swapping to a Newsletter‑writer GPT to generate a newsletter text, and finally invoking the Canva app to automatically create a presentation slide deck. He also shows how a checklist‑checking assistant can validate a list within a project. Throughout, Heitkötter stresses that mastering this "@" functionality is an "efficiency booster" for freelancers and companies, saving time and reducing manual work. He closes by inviting viewers to visit his free resource site (untermichael.de), join his free school community, like the video, and comment on whether they already use Mentions.

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