Bases de l'IA et guides pratiques

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ChatGPT collects more than most guides admit, and three of the facts you have probably read about it are now out of date.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…

Claude vs Gemini vs ChatGPT: Which One Should You Actually Use?

Claude Opus 5, GPT-5.6 Sol and Gemini 3.1 Pro compared on coding, writing, research and price. A short verdict per task, the benchmark story nobody else is telling…

Claude vs Gemini: Which One Should You Actually Use?

Claude leads the benchmarks and Gemini leads on price, speed and reach. We compare Claude Opus 5 and Gemini 3.1 Pro on coding, writing, research, cost and the…

Google AI Pro pour les étudiants en 2026 : l'année gratuite est-elle toujours disponible ?

Si vous cherchez une année gratuite de Google AI Pro en tant qu'étudiant, vous tombez bien : l'offre est de retour. Google a relancé son programme étudiant le 19…

Best AI for Translation: What the Only Independent Test Found

Almost every list answering this question is published by a company selling a translation product. The one independent evaluation that grades output by hand reaches…

Best AI for a Cover Letter? What the Evidence Actually Says

Several of the reassuring statistics you will meet on this topic do not survive a check against their own sources. The research that does hold up says something…

Nano Banana Pricing: What Google’s Image Models Really Cost in 2026

There is no standalone Nano Banana subscription. You either get it inside a Google AI plan starting at $4.99 a month, or you pay per image through the Gemini API…

How to Replace Siri With ChatGPT, Claude, or Gemini

Every guide telling you how to replace Siri with ChatGPT gives a different Settings path, and two of the three menus do not exist. Here is what actually works today…

How to Use Nano Banana: Google’s Image Model, Explained Step by Step

Nano Banana is not labelled anywhere in the Gemini app, which is why so many people cannot find it. Here is where it actually lives, which of the four versions you…

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…

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

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

The best AI for math right now is Claude Opus 5, which sits at the top of MathArena‘s cross-competition ranking with an expected score of 84.4%. That is the short…

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

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

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…

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…

Bons plans IA 2026 : toutes les façons d'économiser sur les outils d'IA qui fonctionnent

Payer ChatGPT Plus à 20 $/mois, Claude Pro à 20 $/mois, Google AI Pro à 19,99 $/mois et Perplexity Pro à 20 $/mois s'additionne à près de 80 $ chaque mois, soit…

Réduction étudiante Claude en 2026 : ce qu'Anthropic propose vraiment (sans faux codes)

Anthropic ne propose pas de réduction étudiante publique et individuelle sur Claude Pro en 2026. Il n'existe ni formulaire d'inscription .edu, ni code promo à la…

Essais gratuits d'IA 2026 : chaque offre Pro que vous pouvez vraiment tester gratuitement

Seules deux offres Pro d'IA phares proposent actuellement un essai gratuit public en août 2026 : Google AI Pro (30 jours, carte requise, se renouvelle à 19,99…

GitHub & Microsoft Copilot gratuit pour les étudiants en 2026 : ce qui fonctionne encore

Si vous êtes étudiant ou enseignant et que vous cherchez un Copilot gratuit en 2026, la porte est de nouveau ouverte. GitHub a rouvert les inscriptions à son plan…

Comment obtenir Perplexity Pro gratuitement (ou à petit prix)

Vous n’êtes pas obligé de payer 20 $/mois pour Perplexity Pro. Les étudiants et enseignants vérifiés ne paient que 10 $/mois pour l’offre Education Pro (une remise…

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

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…

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…

Qu'est-ce qu'un humaniseur d'IA ? Comment ils fonctionnent et s'ils déjouent vraiment les détecteurs

Un humaniseur d'IA est un outil qui réécrit un texte généré par IA pour qu'il se lise comme s'il avait été écrit par une personne, et les recherches à son sujet ont…