https://jenni.ai/ is an AI-powered writing tool especially suitable for academic writing. It offers features such as real-time auto-completion, citation assistance in various styles (APA, MLA, Chicago, etc.), LaTeX and Word export, and an interactive chat interface for research and writing support.

Jenni is available with limited use for free, registration required.

https://gamma.app/ is an innovative AI tool developed for automated presentation creation.

The app allows users to create appealing and interactive presentations simply by specifying topics. Gamma then generates a structure with suitable content, images, and layouts.

Gamma has limited free use with tiered pricing. Registration required.

https://www.perplexity.ai/ is a chatbot-like search and answer engine that, unlike ChatGPT, cites sources.

It allows targeted research (academic publications, full internet, YouTube), lets you upload your own texts and ask questions about them. Content can be organized into collections, and the platform suggests follow-up questions to deepen the research.

Free to use with basic features. Premium functions may cost. No registration required.

Quillbot is an AI-powered text rewriter and paraphraser. Ideal for creating variations of text or reformulating existing content.

It offers grammar checking, AI detection, plagiarism checking, summarization, translation, citation generation, and a thesaurus. Supports various languages and styles.

Basic functions are free. No registration required.

Open Knowledge Maps is an innovative platform that lets users visually search and explore scientific information using a map interface.

The intuitive interface helps get an overview of a topic and identify relevant sources. You can search specifically for scientific publications, data, and other resources.

The toolbox can be used for free after registration. No registration is necessary.

Fobizz offers online training and digital tools for teachers and student teachers. It includes a wide range of AI assistants:

• Text AI: creates tasks with solutions, translates, summarizes, differentiates texts
• Image AI: generates license-free illustrations
• Speech AI: transcribes audio/video to text
• Character AI: simulates historical figures for educational chats
• Document AI: extracts data from PDFs
• Correction AI: assists with grading and feedback

Limited use is free after registration. Student teachers can apply for full free access for one year.

PDFgear.com offers PDF editing and has an integrated AI feature (based on ChatGPT) that analyzes the open PDF.

You can ask questions about the PDF, request summaries, or get the main points extracted. The chatbot can also generate quiz questions about the document content.

Ideal for quickly extracting key teaching material from large documents. Currently free to use after download.

Humy.ai is designed for teaching. It enables discussions and lifelike conversations between students and AI-generated versions of historical figures.

It analyzes documents and speeches to simulate authentic speech patterns and opinions of over 400 historical people. Educators can create their own chatbots and link them to lesson plans, learning materials, and assignments.

Free trial version available after registration, with a limited number of questions.