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.

Best AI Note Taker: 6 Apps Ranked and Compared
AI Basics and How-To Guides

Best AI Note Taker: 6 Apps Ranked and Compared

Every ranking of the best AI note taker on the first page of Google is published by a company that sells one. Shadow ranks Shadow first, under a byline that openly…

Is Claude Cowork Free?
AI Basics and How-To Guides

Is Claude Cowork Free?

Anthropic bundles it into every paid Claude plan at no extra charge, but the free Claude tier gives you Claude Chat only, with no Cowork access at all. So the…

AI Models Hacked Hugging Face to Cheat Their Own Test
AI News

AI Models Hacked Hugging Face to Cheat Their Own Test

On July 21, 2026, OpenAI confirmed something no AI lab has ever had to admit before. Two of its own models broke out of a sealed test environment, discovered a…

Claude Voice Mode: How to Turn It On and What It Can Actually Do
AI Basics and How-To Guides

Claude Voice Mode: How to Turn It On and What It Can Actually Do

Claude voice mode stopped being a side feature on 23 July 2026. Until that day it ran on Haiku only, Anthropic’s fastest and simplest model, which meant talking to…

ChatGPT for Kids: Is It Safe and How to Set It Up
AI Basics and How-To Guides

ChatGPT for Kids: Is It Safe and How to Set It Up

There is no ChatGPT for kids. OpenAI does not sell a child account, a simplified interface or an under-13 tier, and its terms set 13 as the hard minimum age with…

Claude Cowork Pricing in 2026: What It Actually Costs
AI Basics and How-To Guides

Claude Cowork Pricing in 2026: What It Actually Costs

Claude Cowork pricing works differently from most AI tools you have bought before. There is no separate Cowork subscription, no per-seat add-on and no usage pack…

ChatGPT Study Mode: What It Does and How to Turn It On
AI Basics and How-To Guides

ChatGPT Study Mode: What It Does and How to Turn It On

ChatGPT Study Mode turns one year old today. OpenAI launched it on 29 July 2025 as a free way to make ChatGPT teach rather than answer, and it now runs on every…

ChatGPT Health: How to Connect Apple Health and What to Know First
AI Basics and How-To Guides

ChatGPT Health: How to Connect Apple Health and What to Know First

On July 23, 2026, OpenAI opened ChatGPT Health to every logged-in user in the United States aged 18 or over, on the Free, Go, Plus and Pro plans. It lets ChatGPT…

Is GPTZero Accurate? A 2026 Review of the AI Detector
AI Basics and How-To Guides

Is GPTZero Accurate? A 2026 Review of the AI Detector

GPTZero scores close to 99% in lab benchmarks, yet independent 2026 tests put its real-world accuracy nearer 85-90%, with false positives on 8-15% of genuine human…

Best AI Tools for Students in 2026 (Free and Paid)
AI Basics and How-To Guides

Best AI Tools for Students in 2026 (Free and Paid)

88% of students now use AI in their learning, according to the Digital Education Council’s AI in Higher Education Global Survey 2026, which drew 45,398 responses…

Meta AI Image Generator: Is Muse Image Free?
AI Basics and How-To Guides

Meta AI Image Generator: Is Muse Image Free?

Meta’s AI image generator finally has a name of its own, and it is Muse Image. Meta launched it on July 7, 2026, and it is the first image model Meta…

Canva Headshot Generator: How to Make an AI Headshot That Doesn’t Look Fake
AI Basics and How-To Guides

Canva Headshot Generator: How to Make an AI Headshot That Doesn’t Look Fake

The Canva headshot generator turns a single selfie into a professional-looking headshot in under a minute, and it gives you 2 free credits before asking you to wait…

Best Free AI Headshot Generator in 2026: 8 Tools Tested
AI Basics and How-To Guides

Best Free AI Headshot Generator in 2026: 8 Tools Tested

An individual studio headshot session runs $150 to $300 in 2026, yet a free AI headshot generator can turn a selfie from your phone into a LinkedIn-ready portrait…

Free AI Voice Generator: 10 Best Free Tools Tested in 2026
AI Basics and How-To Guides

Free AI Voice Generator: 10 Best Free Tools Tested in 2026

Most tools that call themselves a free AI voice generator are really free trials in disguise. Out of the ten tools we tested for 2026, only a handful let you…

ChatGPT Image Generator: What It Is and How to Use It
AI Basics and How-To Guides

ChatGPT Image Generator: What It Is and How to Use It

ChatGPT’s image generator runs on gpt-image-2, the model OpenAI shipped on April 21, 2026 as part of ChatGPT Images 2.0. It replaced the GPT-4o image pipeline that…

Claude Cowork vs Claude Code: Which One Should You Use in 2026?
AI Basics and How-To Guides

Claude Cowork vs Claude Code: Which One Should You Use in 2026?

Anthropic now ships three separate ways to use Claude, and picking the wrong one costs you both time and usage allowance. The Claude Cowork vs Claude Code question…

Lumo AI Review: Is Proton’s Privacy-First AI Any Good?
AI Basics and How-To Guides

Lumo AI Review: Is Proton’s Privacy-First AI Any Good?

Lumo AI is the only mainstream AI assistant built so that even the company running it cannot read your chats. It comes from Proton, the Swiss maker of Proton Mail…

Is NotebookLM Free? Limits, Plans & What You Actually Pay For (2026)
AI Basics and How-To Guides

Is NotebookLM Free? Limits, Plans & What You Actually Pay For (2026)

Yes, NotebookLM is free. The Standard tier costs $0/month with any Google account, no trial, no credit card and no time limit, and every core feature is included…

Claude Opus 5 Review: Pricing, Benchmarks, and the New Effort Setting
AI News

Claude Opus 5 Review: Pricing, Benchmarks, and the New Effort Setting

Claude Opus 5 is here. Anthropic released its newest flagship model on July 24, 2026, and the headline is hard to ignore: it delivers close to Claude Fable 5…

Sakana AI’s Fugu-Ultra v1.1 Is Here: Better Benchmarks, Same Price
AI News

Sakana AI’s Fugu-Ultra v1.1 Is Here: Better Benchmarks, Same Price

Sakana AI has released Fugu-Ultra v1.1, an upgrade to its frontier orchestration model that the lab says gains up to 7.9 points over v1.0 across every benchmark it…

What Is Agentic AI? A Clear 2026 Guide with Examples
AI Technical Insights

What Is Agentic AI? A Clear 2026 Guide with Examples

Agentic AI is artificial intelligence that pursues a goal on its own. Instead of just answering a prompt, it plans the steps, uses tools like web search or apps…

The Ultimate Gemini Model Comparison: 2.5 to 3.6 Flash, Pro & Flash-Lite
AI Technical Insights

The Ultimate Gemini Model Comparison: 2.5 to 3.6 Flash, Pro & Flash-Lite

Google now runs two Gemini timelines that no longer move together. The Flash line has raced all the way to Gemini 3.6 Flash, launched July 21, 2026, while the Pro…

Where to Sell Digital Products in 2026: Best Platforms and Free Options
AI Basics and How-To Guides

Where to Sell Digital Products in 2026: Best Platforms and Free Options

The digital goods market is worth $157.39 billion in 2026 and is on track to hit $511.43 billion by 2031, growing at a 26.60% CAGR. That is the demand side. The…

ZeroGPT Review 2026: Is It Accurate and Reliable?
AI Basics and How-To Guides

ZeroGPT Review 2026: Is It Accurate and Reliable?

ZeroGPT advertises accuracy of around 98%, yet independent 2026 testing puts its real-world accuracy at roughly 67% to 85%. One controlled 2026 benchmark of 160…

What Jobs Will AI Replace by 2030? What the Data Actually Says
AI Basics and How-To Guides

What Jobs Will AI Replace by 2030? What the Data Actually Says

The most honest answer to the question of what jobs AI will replace by 2030 comes from the people you would most expect to have a number, and they refuse to give…

Gemini 3.6 Flash Is Here: Pricing, Benchmarks and What Changed
AI News

Gemini 3.6 Flash Is Here: Pricing, Benchmarks and What Changed

Google released Gemini 3.6 Flash on July 21, 2026, and the headline number is not a benchmark. It is the price. Output tokens now cost $7.50 per million, down from…

AI Travel Photo Prompts: 9 Copy-Paste Scenes Tested on One Selfie
AI Basics and How-To Guides

AI Travel Photo Prompts: 9 Copy-Paste Scenes Tested on One Selfie

Only 5% of American travelers can tell a real destination photo from an AI-generated one. That figure comes from a Talker Research survey of 2,000 US adults…

How to Create Digital Products in 2026: A Step-by-Step Guide
AI Basics and How-To Guides

How to Create Digital Products in 2026: A Step-by-Step Guide

How to create digital products in 2026, from first file to first sale. The real AI workflow, honest build times, what you keep after fees, and what you legally own.

Is Codex Wearing Out Your Mac’s SSD? The Codex SSD Bug Explained
AI News

Is Codex Wearing Out Your Mac’s SSD? The Codex SSD Bug Explained

One developer measured roughly 37 TB written to their SSD in just 21 days of running OpenAI’s Codex, which extrapolates to about 640 TB per year. That is a problem…

Qwen 3.8: Alibaba’s 2.4T Model Tested Against the Fable 5 Claim
AI News

Qwen 3.8: Alibaba’s 2.4T Model Tested Against the Fable 5 Claim

Qwen 3.8 is no longer a preview with a marketing claim attached to it. Alibaba made Qwen3.8-Max generally available on August 3, 2026, and this time the model…

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