Fello AI Blog

Lenka Vojtechova

Lenka is a content creator and digital marketing specialist with a passion for technology, AI, and storytelling. She combines creativity with a data-driven mindset to craft engaging, meaningful content that connects with readers. With experience across SEO, copywriting, and social media strategy, she helps brands turn complex ideas into clear, relatable messages. When she’s not writing, you’ll find her exploring new AI tools, enjoying a great cup of coffee, or planning her next travel adventure.

What Is Prompt Injection? The AI Flaw Nobody Has Fixed
Technische KI-Einblicke

What Is Prompt Injection? The AI Flaw Nobody Has Fixed

Prompt injection explained in plain English. What it is, why it cannot be patched, which AI tools are exposed, and what actually reduces your risk.

What Is MCP in AI? The Model Context Protocol in Plain English
Technische KI-Einblicke

What Is MCP in AI? The Model Context Protocol in Plain English

MCP explained in plain English. What the Model Context Protocol does, which AI apps already support it, whether it is safe, and how to decide if you need it.

Best AI Dictation Apps for Mac: Tested and Compared
Tipps für den Mac

Best AI Dictation Apps for Mac: Tested and Compared

Almost every guide to the best dictation app for Mac opens with the same claim, which is that Apple’s built-in dictation cuts out after 60 seconds. That is wrong…

GLM 5.3: What Z.ai Shipped, and the Weights It Held Back
KI-News

GLM 5.3: What Z.ai Shipped, and the Weights It Held Back

Update, August 26, 2026: the two-week deadline has passed and GLM 5.3’s weights are still not out. Z.ai released a different model instead, the 320B multimodal GLM…

Which AI Is Best for Resume Writing? Claude, ChatGPT and Gemini Tested
KI-Grundlagen und Anleitungen

Which AI Is Best for Resume Writing? Claude, ChatGPT and Gemini Tested

Three chatbots, one resume, one job description. None of them invented a statistic. One of them quietly claimed nine competencies the candidate never had, which is…

Gemini 3.7 Flash: Pricing, Benchmarks and the Catch Google Buried
KI-News

Gemini 3.7 Flash: Pricing, Benchmarks and the Catch Google Buried

Google released Gemini 3.7 Flash on August 13, 2026, just 23 days after Gemini 3.6 Flash. Coding scores jumped hard and the price halved to $0.75 per million input…

AI Models Discontinued in 2026: The Running List
KI-News

AI Models Discontinued in 2026: The Running List

OpenAI, Anthropic and Google retired dozens of AI models in 2026, and more shutdowns land every month. Here is the running list of what is already gone, what…

Grok 4.6: What's New, Benchmarks and Pricing
KI-News

Grok 4.6: What's New, Benchmarks and Pricing

SpaceXAI released Grok 4.6 on 12 August 2026. It scores 61 on the Artificial Analysis Intelligence Index, ties GPT-5.6 Sol, and costs 60 percent less than the…

GPT-5.6-Cyber: OpenAI’s Hacking Model, and Why You Cannot Use It
KI-News

GPT-5.6-Cyber: OpenAI’s Hacking Model, and Why You Cannot Use It

OpenAI released GPT-5.6-Cyber on August 10, 2026, a model trained to find zero-days and build exploit chains, tuned to refuse far less than the ChatGPT you use…

What Is Grok Bot? SpaceXAI’s AI Agent App for Mac and iPhone
KI-News

What Is Grok Bot? SpaceXAI’s AI Agent App for Mac and iPhone

SpaceXAI launched Grok Bot on 11 August 2026, and it is not a chatbot. Each account gets a persistent cloud computer that AI agents use to sign into your apps with…

Google Classroom AI: What It Does and What It Can’t Detect
KI-Grundlagen und Anleitungen

Google Classroom AI: What It Does and What It Can’t Detect

The short answer most people arrive looking for is this. Google Classroom AI cannot tell you whether a student used ChatGPT. Classroom has no built-in AI detector…

Claude Code Permissions: What Auto Mode Lets Claude Do Without Asking
KI-Grundlagen und Anleitungen

Claude Code Permissions: What Auto Mode Lets Claude Do Without Asking

In a controlled study of 1,053 paid testers, Anthropic swapped one permission prompt for a clearly dangerous command and watched who caught it. The humans caught it…

Best AI for Math: Which Model Actually Solves It
KI-Grundlagen und Anleitungen

Best AI for Math: Which Model Actually Solves It

The best AI for math right now is GPT-6 Astra, which sits at the top of MathArena’s cross-benchmark ranking with an expected score of 88.0%. GPT-6 Sol and Claude…

AI Voice Detector: How to Tell If a Voice Is AI-Generated
KI-Grundlagen und Anleitungen

AI Voice Detector: How to Tell If a Voice Is AI-Generated

Every AI voice detector on the first page of Google advertises something close to 99% accuracy. ElevenLabs, which builds one of them, states plainly on its own tool…

Gemini Avatar: How to Put Yourself in AI Photos and Videos
KI-Grundlagen und Anleitungen

Gemini Avatar: How to Put Yourself in AI Photos and Videos

Google’s July 2026 Gemini Drop extended Gemini Avatar to still images, and that changes what “AI photo of me” means. The feature takes a short selfie video, learns…

Claude Certification: All Four Anthropic Exams Explained
KI-Grundlagen und Anleitungen

Claude Certification: All Four Anthropic Exams Explained

Anthropic now runs four proctored Claude certification exams, priced from $99 to $175 per attempt and delivered through Pearson VUE. In March 2026 there was exactly…

Muse Spark 1.2 and Muse Code: Meta’s Coding Agent for Mac
KI-News

Muse Spark 1.2 and Muse Code: Meta’s Coding Agent for Mac

Meta shipped Muse Spark 1.2 on 5 August 2026 alongside Muse Code, its first terminal coding agent, and the launch charts tell a more honest story than the headlines…

Agentic AI Use Cases: 8 Real-World Examples (2026)
KI-Grundlagen und Anleitungen

Agentic AI Use Cases: 8 Real-World Examples (2026)

Agentic AI has moved from demos to daily operations. According to McKinsey, 62% of organizations are already working with AI agents and 23% are scaling them in at…

KI-Deals 2026: Jeder Weg, bei KI-Tools wirklich zu sparen
KI-Grundlagen und Anleitungen

KI-Deals 2026: Jeder Weg, bei KI-Tools wirklich zu sparen

ChatGPT Plus für $20/Monat, Claude Pro für $20/Monat, Google AI Pro für $19.99/Monat und Perplexity Pro für $20/Monat zu bezahlen summiert sich auf fast $80 jeden…

Claude Studentenrabatt 2026: Was Anthropic wirklich bietet (keine Fake-Codes)
KI-Grundlagen und Anleitungen

Claude Studentenrabatt 2026: Was Anthropic wirklich bietet (keine Fake-Codes)

Anthropic bietet 2026 keinen öffentlichen, individuell einlösbaren Studentenrabatt auf Claude Pro. Es gibt kein .edu-Anmeldeformular, keinen Promo-Code an der Kasse…

KI-Gratistests 2026: Alle Pro-Tarife, die du wirklich kostenlos testen kannst
KI-Grundlagen und Anleitungen

KI-Gratistests 2026: Alle Pro-Tarife, die du wirklich kostenlos testen kannst

Nur zwei Flaggschiff-KI-Pro-Tarife bieten im September 2026 noch einen öffentlichen Gratistest an: Google AI Pro (ein Monat, Karte erforderlich, verlängert sich für…

GitHub & Microsoft Copilot kostenlos für Studierende 2026: Was noch funktioniert
KI-Grundlagen und Anleitungen

GitHub & Microsoft Copilot kostenlos für Studierende 2026: Was noch funktioniert

Wenn du als Studierender oder Lehrender 2026 einen kostenlosen Copilot suchst, ist die Tür wieder offen. GitHub hat die Anmeldungen für seinen kostenlosen Copilot…

Perplexity Pro kostenlos (oder günstig) bekommen
KI-Grundlagen und Anleitungen

Perplexity Pro kostenlos (oder günstig) bekommen

Du musst für Perplexity Pro keine 20 $/Monat zahlen. Verifizierte Studierende und Lehrkräfte zahlen für den Education-Pro-Plan nur 10 $/Monat (glatte 50 % Rabatt)…

Claude Usage Limits: Session, Weekly and Message Caps Explained
KI-Grundlagen und Anleitungen

Claude Usage Limits: Session, Weekly and Message Caps Explained

Claude enforces two usage limits at the same time. Here is how the five-hour session limit and the weekly limit actually work.

AI for Teachers: The Best Tools and Free Access in 2026
KI-Grundlagen und Anleitungen

AI for Teachers: The Best Tools and Free Access in 2026

Six in ten US teachers now use AI for their work. The ones who use it at least weekly estimate they save 5.9 hours every week, roughly six weeks of reclaimed time…

Apple Upgrade Program: So funktioniert es, was es kostet und lohnt es sich?
Tipps für den Mac

Apple Upgrade Program: So funktioniert es, was es kostet und lohnt es sich?

Apple hat das Apple Upgrade Program am 28. Juli 2026 gestartet und das iPhone Upgrade Program am selben Tag eingestellt. Mac-Leasing beginnt bei $24.99 im Monat…

Apple Sues OpenAI: What It Means for Siri and Your iPhone
KI-News

Apple Sues OpenAI: What It Means for Siri and Your iPhone

On Monday 3 August 2026, Apple asked a federal judge to bar OpenAI and two former Apple employees from accessing, using or disclosing its confidential information…

The Best AI Tools for Students and Researchers
KI-Grundlagen und Anleitungen

The Best AI Tools for Students and Researchers

Researcher use of AI jumped from 57% in 2024 to 84% in 2025, according to Wiley’s ExplanAItions study of more than 2,400 researchers worldwide. Use for research and…

Was ist ein KI-Humanizer? Wie sie funktionieren und ob sie Detektoren wirklich austricksen
KI-Grundlagen und Anleitungen

Was ist ein KI-Humanizer? Wie sie funktionieren und ob sie Detektoren wirklich austricksen

Ein KI-Humanizer ist ein Tool, das KI-generierten Text so umschreibt, dass er wie von einem Menschen verfasst klingt, und die Suchanfragen danach sind auf über…

Grok Voice Mode: How to Enable It and Change Grok’s Voice
KI-Grundlagen und Anleitungen

Grok Voice Mode: How to Enable It and Change Grok’s Voice

Grok voice mode is the one Grok feature almost every guide online still gets wrong. Search it and you will be told the free plan gets 15 minutes a day, SuperGrok…

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