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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.

AI for Seniors: How to Set It Up for a Parent Who Will Not Troubleshoot
Základy AI a praktické návody

AI for Seniors: How to Set It Up for a Parent Who Will Not Troubleshoot

Most guides to AI for seniors are written for the senior. This one is written for you, the person who will get the phone call when it stops working.

Is DeepSeek Free? Why There Is No Paid Plan to Upgrade To
Základy AI a praktické návody

Is DeepSeek Free? Why There Is No Paid Plan to Upgrade To

DeepSeek’s chat and app cost nothing, and there is no paid consumer tier to upgrade to. The word “free” does not appear once on DeepSeek’s only pricing page, and…

How to Delete Images From ChatGPT Library (and What It Actually Removes)
Základy AI a praktické návody

How to Delete Images From ChatGPT Library (and What It Actually Removes)

There is no delete button on a generated image in the ChatGPT library. OpenAI still documents one method: delete the whole conversation the image came from. But…

AI Safety Incidents in 2026: The Running List
AI novinky

AI Safety Incidents in 2026: The Running List

The most serious AI safety incidents of 2026 did not happen in the wild. They happened inside the labs’ own testing, and the UK government has now published the…

AI Tattoo Cover Up Generator: What It Cannot See on Your Skin
Základy AI a praktické návody

AI Tattoo Cover Up Generator: What It Cannot See on Your Skin

An AI tattoo cover up generator will hand you a design in about twenty seconds. Upload a photo of the tattoo you regret, pick a style, and the tool returns a stack…

Claude Prompts: 30 That Work, and Why They Work on Claude
Prompt engineering

Claude Prompts: 30 That Work, and Why They Work on Claude

Most Claude prompt lists are ChatGPT prompts with the name swapped. Claude rewards a different shape: tagged structure, three to five examples, and your documents…

Jev and System One Models: The AI That Answers in Numbers, Not Words
Technický pohled na AI

Jev and System One Models: The AI That Answers in Numbers, Not Words

A new AI lab says its model is 444 times cheaper than an LLM and cannot hallucinate. Its own documentation and two independent tests tell a more useful story about…

DeepSeek vs Grok: Cost, Limits and What Each One Refuses
Základy AI a praktické návody

DeepSeek vs Grok: Cost, Limits and What Each One Refuses

DeepSeek is far cheaper and better at structured reasoning. Grok costs more and answers far more questions. The real difference is not benchmarks, it is what each…

How to Cancel an AI Subscription on Mac and iPhone
Tipy pro Mac

How to Cancel an AI Subscription on Mac and iPhone

Most AI cancellations fail for the same reason, which is that the charge comes from Apple rather than from the AI company, and the AI company is not allowed to stop…

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

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…

Vše, co víme o Google Gemini 4: datum vydání, spekulace a co očekávat
AI novinky

Vše, co víme o Google Gemini 4: datum vydání, spekulace a co očekávat

Gemini 4 je venku. Google oznámil Gemini 4 Argon, první model Gemini 4, 30. září 2026 a 13. října ho zpřístupnil uživatelům placeného API a předplatitelům Google AI…

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

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
Základy AI a praktické návody

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
Tipy pro 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: datum vydání, nové funkce a všechny podporované iPhony
AI novinky

iOS 27: datum vydání, nové funkce a všechny podporované iPhony

iOS 27 je venku. Apple ho vydal v pondělí 14. září 2026 jako bezplatnou aktualizaci pro všechny iPhony od iPhonu 11 výše a kompletně přepracovaná Siri dorazila s…

ChatGPT Tattoo Design: How to Get Something an Artist Can Actually Use
Základy AI a praktické návody

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
Tipy pro 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
Tipy pro 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
Základy AI a praktické návody

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
Základy AI a praktické návody

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
Základy AI a praktické návody

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
Základy AI a praktické návody

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
Základy AI a praktické návody

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 novinky

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
Základy AI a praktické návody

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
Základy AI a praktické návody

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
Základy AI a praktické návody

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
Základy AI a praktické návody

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 novinky

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…

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