ChatGPT in 3 minutes

You hear about ChatGPT everywhere... but you don't really know what it is?
In just a few minutes what it does, how it works and a practical example.

📌 What is ChatGPT?

• A artificial intelligence tool developed by OpenAI

• Understands and generates text in natural language (like a real conversation)

• Can write, summarize, translate, analyze, explain...

• Based on large quantities of data and your instructions

💡 Concrete use cases

• 📄 Writing posts, emails, scripts, articles

• 📊 Analyze data, documents, trends

• 🎯 Brainstormer campaign ideas, product names

• 🎓 Learn understanding a concept, creating a lesson plan

• 🤖 Automate prepare messages, prompts, scripts

👉 In brief: a versatile assistant... as long as you know how to talk to it.

🔍 The different ChatGPT models

 

Model	Multimodality	Complex reasoning	Image generation	Memory	Ideal for
GPT-5	Text, image, audio/voice, video (analysis) + code	⭐⭐⭐⭐✩	Yes	Long	Premium writing, strategic analysis, full-stack dev, reliable answers
GPT-5 mini	Same but lighter and faster	⭐⭐⭐✩✩	Yes	Long	Volume, fast pro chat, prototyping
GPT-5 nano	Ultra-compact, mobile/edge-optimized version	⭐⭐✩✩✩	Optional	Medium	Embedded integrations, simple wizards
GPT-5 pro (thinking)	Like GPT-5 but with extended reasoning and finer planning	⭐⭐⭐⭐⭐	Yes	Longer	Critical cases: audits, complex decisions, technical problems
o3 (reasoning)	Multimodal + code	⭐⭐⭐⭐⭐	Yes	Long	Thorny problems, data/vision, math, consulting
o4-mini (quick thinking)	Multimodal + code	⭐⭐⭐⭐✩	Yes	Long	High volume, demanding Q&A on a tight budget
GPT-4.5	Text + image + code	⭐⭐⭐⭐✩	Limited	Long	Editing, general dev, correct reliability
GPT-4o	Text, image, audio/voice, vision + code	⭐⭐⭐⭐✩	Limited	Long	Multimodal real-time apps, translation, customer support

 

💡 Tip Choose the model that best suits your needs, not always the most powerful. You want the best overall, without the headaches? GPT-5. For serious cases : GPT-5 pro (thinking)

🛠 Customization & GPTs

• Adapt ChatGPT to your tone, profession and preferences

• Create your own Tailor-made GPTs who know your business, your files and your methods
  (Links to our tutorials in description)

💬 Concrete example

"Make me an outline for a 2-hour workshop on AI for beginner SME managers, with concrete examples."
➡️ Result: a clear, structured plan, with support, visuals and quizzes generated in seconds.

🚀 Now you know what ChatGPT is and how to use it today.
📺 Check out our other videos to learn how to personalize it, create your GPTs and talk to it like a pro.