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.

Siri AI on Mac: Where It Actually Lives in macOS 27
Tips for Mac

Siri AI on Mac: Where It Actually Lives in macOS 27

macOS 27 Golden Gate shipped on 14 September 2026, and Siri AI came with it. Most coverage says it is in Spotlight. That is one of four places it lives on a Mac…

ChatGPT Sponsored Agents: The Ads That Talk Back, Explained
AI News

ChatGPT Sponsored Agents: The Ads That Talk Back, Explained

OpenAI announced on 16 September 2026 that it is testing Sponsored Agents, a ChatGPT ad format you can hold a conversation with. Here is what it is, how to spot…

All We Know About Google Gemini 4: Release Date, Rumors & What to Expect
AI News

All We Know About Google Gemini 4: Release Date, Rumors & What to Expect

Gemini 4 is out. Google announced Gemini 4 Argon, the first Gemini 4 model, on September 30, 2026, and opened it to paid API users and Google AI Pro and Ultra…

AI Misalignment: OpenAI Just Published Six Times Its Models Went Off Script
AI News

AI Misalignment: OpenAI Just Published Six Times Its Models Went Off Script

An OpenAI model could not find the historical data it had been asked for, so it wrote itself a note saying it should invent reasonable numbers and "be transparent…

AI File Upload Limits: What Each Chatbot Actually Accepts
AI Basics and How-To Guides

AI File Upload Limits: What Each Chatbot Actually Accepts

Every chatbot caps what you can upload, and almost every guide online gets the numbers wrong. Here is what ChatGPT, Claude, Gemini, Grok and Perplexity actually…

Best AI Calendar Assistant for Mac: Which Ones Actually Work With iCloud
Tips for Mac

Best AI Calendar Assistant for Mac: Which Ones Actually Work With iCloud

Most AI calendar tools are built for Google Calendar, and on a Mac that is the whole problem. Here is which ones actually read and write iCloud, what they really…

iOS 27: Release Date, New Features, and Every Supported iPhone
AI News

iOS 27: Release Date, New Features, and Every Supported iPhone

iOS 27 is out. Apple released it on Monday, September 14, 2026 as a free update for every iPhone going back to the iPhone 11, and the complete rebuild of Siri…

ChatGPT Tattoo Design: How to Get Something an Artist Can Actually Use
AI Basics and How-To Guides

ChatGPT Tattoo Design: How to Get Something an Artist Can Actually Use

ChatGPT will draw you a tattoo in about fifteen seconds. Whether a tattooist can actually ink it is a completely different question, and the people fielding these…

Apple Intelligence Not Working? How to Fix It on iPhone, iPad, and Mac
Tips for Mac

Apple Intelligence Not Working? How to Fix It on iPhone, iPad, and Mac

Apple Intelligence not working almost always comes down to five things, and only one of them is your hardware. Apple confirmed that iOS 27 arrives on 14 September…

AI Subtitles on a Mac: What Actually Works Right Now
Tips for Mac

AI Subtitles on a Mac: What Actually Works Right Now

VLC announced offline AI subtitles at CES 2025 and still has not shipped them. Meanwhile your Mac has been captioning audio on device this whole time, and macOS 27…

How to Create a Custom GPT: Who Still Can, and What to Do If You Cannot
AI Basics and How-To Guides

How to Create a Custom GPT: Who Still Can, and What to Do If You Cannot

Almost every guide to creating a custom GPT tells you to open the builder and click Create. That path is closed. OpenAI states that new GPT creation and publishing…

Microsoft Copilot vs Gemini in 2026: Prices, Mac Apps and the Verdict
AI Basics and How-To Guides

Microsoft Copilot vs Gemini in 2026: Prices, Mac Apps and the Verdict

Every Microsoft Copilot vs Gemini comparison online prices them as business seats, $18 a user against $14 a user. Almost nobody buys them that way. As consumer…

NotebookLM Alternatives: What Gemini Notebook Won’t Do, and What Fixes It
AI Basics and How-To Guides

NotebookLM Alternatives: What Gemini Notebook Won’t Do, and What Fixes It

Google renamed NotebookLM to Gemini Notebook in July 2026, but the reasons people look for a replacement did not change. Here is what the tool will not do, and the…

What Are AI Tokens? The Unit Every AI Bill Is Counted In
AI Basics and How-To Guides

What Are AI Tokens? The Unit Every AI Bill Is Counted In

Every AI price you have ever seen is quoted per million tokens, and almost nobody explains what a token actually is. It is not a word, it is not a message, and it…

Gemini Canvas: What It Is, What It Makes, and What It Costs
AI Basics and How-To Guides

Gemini Canvas: What It Is, What It Makes, and What It Costs

Gemini Canvas is a workspace inside the Gemini app where the model builds and edits a document, app or web page in place. Here is what it makes, what it costs, and…

Pace the Frontier: What AI Labs Actually Committed To
AI News

Pace the Frontier: What AI Labs Actually Committed To

On 12 September 2026 Anthropic CEO Dario Amodei published an essay arguing that the AI industry should deliberately slow down, and within hours the heads of OpenAI…

How to Use Claude Projects: Setup, Limits and What They Cost
AI Basics and How-To Guides

How to Use Claude Projects: Setup, Limits and What They Cost

Claude Projects hold one long-running job in a single workspace: its chats, its files and its own instructions. Here is the setup, the five-project free cap…

Too Many AI Subscriptions? Run This Audit Before You Renew
AI Basics and How-To Guides

Too Many AI Subscriptions? Run This Audit Before You Renew

ChatGPT now lists unlimited text chat on its free plan and Claude has moved memory, web search and file creation into its own. The reason most people bought a…

Why AI Gives You a Different Answer Every Time
AI Basics and How-To Guides

Why AI Gives You a Different Answer Every Time

Ask an AI the same question twice and you often get two different answers. Researchers at Thinking Machines Lab ran the same prompt 1,000 times with randomness…

Can You Sell AI-Generated Art? What the Platforms Actually Say
AI Basics and How-To Guides

Can You Sell AI-Generated Art? What the Platforms Actually Say

Yes, you can sell AI-generated art. But the platforms disagree completely about whether they will host it, and a lot of the advice online is not in the policies it…

iPhone 18 Pro AI Features: Every One, and Which Need the New Phone
AI News

iPhone 18 Pro AI Features: Every One, and Which Need the New Phone

Apple gave AI top billing at the iPhone 18 Pro launch on 9 September 2026, and the A20 Pro doubles the Neural Engine to 32 cores. Yet almost every AI feature Apple…

Claude Pro vs Max: Which Plan You Actually Need
AI Basics and How-To Guides

Claude Pro vs Max: Which Plan You Actually Need

Claude Pro and Max run the same models. The only difference is how much you can use them, and Anthropic will not tell you how much that is.

DeepSeek vs Claude: Which One Should You Actually Pay For?
AI Basics and How-To Guides

DeepSeek vs Claude: Which One Should You Actually Pay For?

Almost every comparison you can find still prices DeepSeek at $0.14 per million input tokens. That rate was retired at 16:00 UTC on 16 August 2026, when DeepSeek…

iPhone Duo: Every AI Feature in Apple's First Foldable
AI News

iPhone Duo: Every AI Feature in Apple's First Foldable

Apple announced the iPhone Duo on 9 September 2026, its first foldable iPhone, at $1,999 for 256GB. It runs the same A20 Pro chip as the iPhone 18 Pro, so every AI…

Apple Audio Intelligence: What Your Apple Watch Actually Hears
AI News

Apple Audio Intelligence: What Your Apple Watch Actually Hears

Apple announced Audio Intelligence on 9 September 2026, a set of four Apple Watch features that includes a tool which summarises the conversations you have during…

Perplexity vs ChatGPT: What Actually Separates Them
AI Basics and How-To Guides

Perplexity vs ChatGPT: What Actually Separates Them

Almost every Perplexity vs ChatGPT comparison treats them as rival brains. They are not. On a paid Perplexity plan you can be talking to OpenAI, because Perplexity…

AI Benchmarks Explained: What MMLU, GPQA, SWE-bench and LMArena Actually Measure
AI Technical Insights

AI Benchmarks Explained: What MMLU, GPQA, SWE-bench and LMArena Actually Measure

Every AI launch arrives with a wall of numbers. The benchmarks behind them are narrower, older and more fragile than the charts suggest, and the same test can hand…

ChatGPT Canvas Is Gone: What Replaced It and What to Use Now
AI Basics and How-To Guides

ChatGPT Canvas Is Gone: What Replaced It and What to Use Now

ChatGPT Canvas was removed on 28 May 2026 and replaced by writing blocks and code blocks. Here is what changed, where each Canvas feature went, and how to do the…

Best AI Menu Bar Apps for Mac: The Four Jobs They Actually Do
Tips for Mac

Best AI Menu Bar Apps for Mac: The Four Jobs They Actually Do

Every roundup treats AI menu bar apps as one category. They are four different jobs, and most people who think they need one app actually need two. Here is what…

ChatGPT Images 2.5 Is Here: Faster Generation, Comment Edits and Two New API Models
AI News

ChatGPT Images 2.5 Is Here: Faster Generation, Comment Edits and Two New API Models

OpenAI shipped ChatGPT Images 2.5 on 8 September 2026 with up to 50% lower generation latency, comment-based editing, a Sketch tool and two new API models. Here is…

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