Master Claude Code
from scratch
The reference guide to harness the full power of AI in your daily work. Whether you're a developer, entrepreneur or simply curious, it all starts here.
Why the Codex
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- FR + EN, mirrored content
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- Listed by official MCP
Latest articles
The most recent additions to the Codex.
Claude Opus 5.5: Fable 5.1-level work for 40% less than Opus 5
Anthropic released Claude Opus 5.5 on September 22, 2026: lower prices, $0.20 cache reads, faster output and a new default model in Claude Code. What actually changes for you.
Read the articleFable 5.1 and Mythos 5.1: one model, two levels of safeguards
Released September 1, 2026, Claude Fable 5.1 and Mythos 5.1 are the same model with different protections. Cache reads cut by 75%, fewer cyber false positives: the rundown for developers.
GPT-6 vs Opus 5.5: what the prices and numbers really say
OpenAI launched GPT-6 Astra on September 3, 2026, then Sol and Luna on the 22nd, the same day as Opus 5.5. Official pricing, available benchmarks and comparison traps, without taking sides.
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What you can do with Claude Code
Claude Code is not just a chatbot. It's a creative partner that understands your context and acts in your environment.
No matter your profile, Claude Code is made for you
AI is no longer reserved for engineers. Every creative, ambitious or simply curious person can benefit from it.
Developers
Accelerate your workflow 10x. Code review, refactoring, automated tests, assisted debugging. Your ultimate copilot.
Entrepreneurs
Launch your MVP in days instead of weeks. Prototype, iterate and deploy without a tech team.
Creatives & Designers
Transform your mockups into living websites. Generate animations, custom UI components.
Students
Learn by doing. Claude Code explains every concept, fixes your mistakes and guides you step by step.
Curious & Self-taught
Explore the world of code without prerequisites. Ask questions, experiment, create your first projects.
Teams & Managers
Standardize your workflows, auto-document, and give superpowers to your entire team.
Choose your path
Three paths adapted to your level. Start where you are, progress at your own pace.
Your custom setup in 2 minutes
No need to read everything. Answer a few questions and get a personalized configuration, ready to use.
Configure your ideal environment
Answer a few simple questions and get a personalized Claude Code setup: recommended MCPs, generated CLAUDE.md file, and tips tailored to your profile.
Ready to transform the way you work ?
The guide is free, open-source and built to last. Start now and join a community that pushes the boundaries of what's possible.