AI explained: types, providers and uses
Artificial intelligence has been everywhere since tools like ChatGPT arrived. But what does the word really cover? Here is the full topic, without jargon: the main types of AI, the providers that matter — including France's Mistral —, the concrete services, and how to use them without falling into traps.
The different types of AI
"AI" is an umbrella word. Behind it, several families coexist. Here are the five worth knowing.
Generative AI
It creates new content — text, image, sound, code — from your prompts. This is the current wave (ChatGPT, Midjourney).
Machine learning
The foundation of it all: the machine learns from examples instead of hand-written rules. "Deep learning" (neural networks) is its most powerful form.
LLMs (language models)
The engine of text assistants: trained on huge corpora, they predict the next word. ChatGPT, Claude, Gemini and Mistral are LLMs.
Multimodal AI
It understands and produces several formats at once: text, image, audio, video. Show it a photo, it describes it; talk to it, it answers.
Predictive AI
Less visible but everywhere: recommendations, fraud detection, forecasts. It classifies and predicts from data, rather than generating.
Key point: everything that exists today is "narrow" AI — specialised in one task. "General AI" (AGI), as versatile as a human, does not exist yet. Be wary of anyone claiming otherwise.
The main providers
A handful of players concentrate most of it. Most are American — and one European champion holds its own.
OpenAI
United StatesThe mainstream pioneer: ChatGPT, the GPT models, DALL·E (images), Sora (video). Closed models, available via subscription or API.
Anthropic
United StatesMaker of Claude, the assistant that runs this site. Positioning: reliability and safety. Closed models (subscription, API).
Gemini, built into Google Search and Workspace (Gmail, Docs). Very present in tools you already use.
Meta
United StatesLlama: "open" models (downloadable and self-hostable). Meta is not a consumer service but a model provider.
Mistral AI
France · EuropeThe European champion, founded in Paris in 2023. Its "Le Chat" assistant and its (often open) models offer a sovereign alternative: data in Europe, GDPR, independence from the US giants.
xAI
United StatesGrok, integrated into the X social network. A newer player, driven by Elon Musk's ecosystem.
Two big families: "closed" models (GPT, Claude, Gemini), available only via their service or API, and "open" models (Meta's Llama, Mistral, or China's DeepSeek and Qwen) that you can download and self-host. Open favours sovereignty; closed often favours simplicity. And behind it, the GPU battle →
The different services
A single model is consumed in several ways. Here are the six main entry points.
Chat assistants
Consumer chatbots: ChatGPT, Claude, Gemini, Mistral's Le Chat. You type, they answer.
API & integration
Plug AI directly into your own tools, sites or automations, billed per use.
Image generation
Create visuals from a description: Midjourney, DALL·E, Stable Diffusion.
Coding assistants
Help write and fix code: GitHub Copilot, Claude Code, Cursor. See our dedicated guide.
Voice & transcription
Transcribe audio to text, read text aloud, dub a video.
AI already built in
It is often already there: in Microsoft 365, Google Workspace, Photoshop or your browser.
What AI can do for your business
Write faster
Website text, product descriptions, email replies — a first draft in seconds.
Prepare and format data
Clean, sort, structure and reformat raw data (spreadsheets, lists, texts) into a clean, usable format.
Create visuals
Images, illustrations, first logo ideas, simple edits — without complex software.
Answer customers
Reply drafts, FAQs, even a small chat assistant on your site.
Translate
Reach an international audience by translating your pages and messages.
Save time
Summarise a document, sort information, transcribe audio, prepare a report.
Using it well: 4 precautions
Always check
AI sometimes errs confidently ("hallucinations"). Re-read and cross-check before publishing.
Protect data
Do not paste sensitive customer data into a public tool: it is a GDPR matter.
Keep your voice
AI helps you start, but the right tone and your trade accuracy stay yours.
You decide
AI suggests, it does not decide. No important action should be automatic and blind.
Where to start
Pick a free tool, take a simple repetitive task (rewrite a text, translate a page), and compare the result to what you would have done. Keep what saves you time, drop the rest. Start small, no pressure.