Fundamentos de IA e Guias Práticos

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

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

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

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…

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?

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…

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…

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…

Claude vs Perplexity: Which AI Should You Actually Pay For?

Most Claude vs Perplexity comparisons get two things wrong. Perplexity can already run Claude on a paid plan, and Claude has searched the web on every plan since…

Grok Bot vs Claude Cowork: Which AI Agent Is Worth $20?

On 11 August 2026 Grok Bot cost $200 a month. Fifteen days later it cost $20, the same as Claude Cowork on Claude Pro. Both agents now run in the cloud, both keep…

ChatGPT Limits: When They Reset and How to Check

ChatGPT does not show you how much you have left. There is no counter, no meter and no usage page for ordinary chat. Here is what is actually capped in 2026, when…

AI PDF Reader: The 8 Best Tools Compared for 2026

Eight AI PDF readers compared on what they actually do with your document, including the split between tools that analyze files and tools that read them aloud.

ChatGPT Plus vs Pro: Which Plan You Actually Need

ChatGPT Plus is $20 a month. ChatGPT Pro is not one plan but two, at $100 and $200, and OpenAI describes the gap between them in usage multipliers rather than…

Claude Memory: How to Control What Claude Remembers

Claude memory is on by default on the Free, Pro and Max plans, it now carries context between chat and Cowork, and deleting a conversation does not delete what…

Grok vs Gemini: Which AI Is Actually Better in 2026?

Grok 4.6 and Gemini 3.1 Pro cost almost the same to run, but they are built for different jobs. Gemini is the better default for most people. Grok is the sharper…

What Is Artificial General Intelligence (AGI)? Definition, Examples and Where We Actually Are

Artificial general intelligence is an AI that matches human ability across essentially every cognitive task, and it does not exist. What changed recently is that…

Microsoft Copilot vs ChatGPT in 2026: Which One Should You Pay For?

Almost every Microsoft Copilot vs ChatGPT comparison online still pits Copilot Pro against ChatGPT Plus at $20 each. Copilot Pro stopped selling in October 2025 and…

Microsoft Copilot Pricing in 2026: Every Plan and What You Really Pay

Microsoft Copilot ranges from free to $30 per user per month, but the advertised price is never the bill. Every business tier is an add-on that sits on top of a…

Claude Tag: What It Is, How It Works in Slack, and Who Can Use It

Claude Tag put a shared @Claude inside Slack channels, and it replaced the old Claude in Slack app on 3 August 2026. Here is what it does, who can get it, and what…

How to Use Microsoft Copilot in 2026: Every Version, Step by Step

Learning how to use Microsoft Copilot starts with a question nobody expects, which is which Copilot you actually have. Two different products now share the name…

Gemini Gems: What They Are, What They Can Do, and Where They Stop

Gems are saved, reusable versions of Gemini, free on every plan. Here is what they can do, the limits Google never publishes, and what sharing one gives away.

ChatGPT Memory: How It Works and How to Delete It

ChatGPT rebuilt how it remembers you on 4 June 2026, and almost every guide still describes the old screen. Here is how the memory summary works, how to delete what…

The Best AI Browser: Which Ones Actually Still Work

Most best AI browser lists still recommend software that stopped working. Here are the ones that survived, what they cost, and whether they are safe.

ChatGPT Projects: How They Work and How to Use Them

ChatGPT Projects keep one long-running job in a single workspace: its chats, its files and its own instructions. Here are the real file limits, the sharing rules…

AI Job Interview Practice: How to Rehearse Before a Machine Screens You

Everyone used AI to write their application, so employers added a machine to screen it. Here is how to rehearse against the thing that is actually scoring you, and…

What Is Microsoft Copilot? Every Version, Price and Model in 2026

Microsoft Copilot is Microsoft’s AI assistant, built into Windows, Edge and the Microsoft 365 apps. As of August 2026 the name covers two completely different…

ChatGPT Privacy: What OpenAI Collects and Who Can See It

ChatGPT collects more than most guides admit, and three of the facts you have probably read about it are now out of date. Here is what OpenAI actually stores, who…

AI Watermarks Explained: How to Check for Them and How to Remove Them

An AI watermark is not one thing. It is a visible logo you can crop away and an invisible signal you cannot, and since 2 August 2026 European law requires the…

Is ChatGPT Allowed in School? The AI Rules That Actually Apply to You

Is ChatGPT allowed in school? Usually yes, with conditions. Here is the three-layer rule that decides it, a task by task table of what you may and may not do, and a…

Gemini Study Notebooks: How to Study With Google's Free AI Tutor

Gemini study notebooks turn your lecture notes into an adaptive tutor with a diagnostic quiz and a progress dashboard. Here is how to make one, what it costs, and…