Claude Code and Codex training
for business
Vibe coding with Claude Code and Codex: in-person training at your offices so your teams build their own business tools (dashboards, small apps, automations), without being developers.
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What is Mister AI's Claude Code and Codex training?
Mister AI's Claude Code and Codex training is an in-company course, delivered in person at your offices. It teaches your teams to build their own tools by simply describing what they want: this is called vibe coding.
It lasts one 7-hour day, from €2,200 excl. VAT per day per group. It is run by the trainers of our vibe coding team, led by Lorris Lebuy, who builds custom tools for our clients.
What your teams will learn
What your teams will be able to do with Claude Code and Codex
With Claude Code and Codex, the AI writes the code: your people describe the need, check the result and adjust it. The training works on simple tools that are useful the very next day.
Which tool could your teams build?
A consultant works with you to find the needs that lend themselves to vibe coding, team by team, before building the programme.
Programme: building your own tools with Claude Code and Codex
Understanding vibe coding
9:00 – Round table: the tools everyone would like to have day to day, and the goals for the day.
9:20 – Claude Code and Codex: what they can do, how they differ from an assistant like Claude or ChatGPT, and their limits.
9:50 – Getting started: installation, interface, first exchanges with the tool and how to find your way around.
10:15 – The ground rules: sensitive data, access rights, and what you don't hand over to AI.
Building a first tool
10:30 – Describing a need well: the goal, the starting data, the expected result and examples.
11:00 – Guided workshop: build a first tool together from a real file, for example an Excel dashboard.
11:45 – Iterate: test, report errors, get the tool fixed and improved.
12:15 – Staying in control: versions, backups and the project's instruction file.
Going further
14:00 – Give the AI lasting instructions: project rules, Skills and reusable commands.
14:40 – Connect the tool to your data and software with connectors (MCP).
15:10 – Hand over longer tasks: prepare a plan, let the AI work, then have the code reviewed.
15:35 – Share the tool with colleagues, and know when to hand over to the IT team.
Your business tools
16:00 – Workshop: each participant builds a tool for a real everyday task, supported by the trainer.
16:50 – Demos: everyone presents their tool and the group shares the points to watch.
17:15 – Action plan: the next tools to build, and feedback on the day.
Training adapted to your teams' profile
You don't train an accounting team and an IT team the same way. The scoping call before the session is used to adapt the content to the group.
Included in your Claude Code and Codex training
A self-assessment questionnaire before the training, to match the level to the group.
An end-of-day quiz to check what has been learned.
The training materials, sent after the session.
Ready-to-use templates for instructions and projects.
Our results
in figures
Updated: October 2026
Updated: September 2026
Updated: September 2026
Everything you need to know
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Lorris Lebuy, vibe coding lead at Mister AI
Before joining Mister AI, Lorris ran a software development company with around ten developers. He has led some sixty AI-assisted development projects in total and created Folia, a business software product. At Mister AI, he leads our vibe coding team and has already run around fifty days of training on building with AI.
The programme is built on these real projects: you learn what really works in a business, and the traps to avoid. Sessions are run by Lorris and the trainers in his team.
They build their tools with Mister AI
Clésence, OPAC de l'Oise and Eiffage Énergie Systèmes work with Mister AI on vibe coding, and at Icade our team built business tools for asset management and property. For a more ambitious project, see our custom development offer.
Training is not always enough: have your tools built for you
Before the training, an AI audit finds the tools that would save the most time, role by role. Afterwards, our AI change management support makes new habits stick, and our vibe coding team can build a custom tool with you, in around ten days.
Frequently asked questions about Claude Code and Codex training
Do you need to know how to code to take the Claude Code and Codex training?
No. The whole point of vibe coding is to describe what you want in plain language: the AI writes the code. The training teaches people to express the need well, check the result and get it fixed. Technical profiles also get a lot out of it, with content adapted during scoping.
What is the difference between Claude Code and Codex?
Both tools write and edit code from your instructions: Claude Code is made by Anthropic, Codex by OpenAI. They work in a very similar way. The training covers both and runs on whichever one your company uses.
How much does Claude Code and Codex training cost for a business?
The training starts at €2,200 excl. VAT per day, per group, at your offices. The final price depends on the number of sessions and how much tailoring you need: we send you a quote after a scoping call.
Which licence do you need for the training?
You need access to Claude Code (with a Claude licence) or Codex (with a ChatGPT licence). If you are not equipped yet, Mister AI helps you choose, buy and set up your licences.
Are tools built with AI reliable and secure?
They are as reliable as the way they are built and checked. The training stresses the right habits: never expose sensitive data, test every tool, have it reviewed, and hand over to your IT team any tool that needs to be widely shared or touches critical data.
Can the Claude Code and Codex training be funded?
Mister IA Entreprise is a Qualiopi-certified training provider: in France, the training can be funded by your OPCO. Elsewhere, we provide the documents your training budget or funding scheme requires (programme, quote, training agreement).
What happens after the training?
Each participant leaves with a first working tool and a list of the next ones to build. For a more ambitious project, our vibe coding team can build it with you, in around ten days.
