OPENAI TRAINING 2026: BUILD PRODUCTION-GRADE AI APPLICATIONS WITH THE OPENAI PLATFORM.
OpenAI is no longer just ChatGPT. In 2026, it is a full AI platform: GPT-4o multimodal, Assistants API, function calling, embeddings, DALL-E 3, Whisper, fine-tuning. Mastering OpenAI means moving from curious user to pro who ships AI systems in production. Our bootcamps teach the OpenAI ecosystem in depth, AND the rest of the AI stack (Claude, Gemini, Mistral, Perplexity). €890 incl. tax, 10 seats max.
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The OpenAI platform in 2026 — what changed and why it matters for your projects.
OpenAI is no longer just "the ChatGPT company". In 2026, it is the most-deployed AI platform in business. GPT-4o handles text, image and audio natively as a multimodal model. The Assistants API lets you build specialized copilots. Function calling connects AI to your business tools. And fine-tuning lets you adapt the models to your data.
What you can build with OpenAI when you know the platform.
Content generation at scale: articles, emails, LinkedIn posts, product sheets. With the GPT-4o API, you industrialize writing without copy-pasting in ChatGPT.
Document analysis: reports, contracts, financial data. The Assistants API ingests entire files and lets GPT-4o answer like a senior consultant.
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Workflow automation: automated reporting, lead qualification, follow-ups. With function calling, GPT-4o calls your business APIs directly (CRM, Notion, Airtable, Slack).
Semantic search over your proprietary data via embeddings. You build your own AI search engine, plugged into your internal docs.
Specialized AI agents: customer support, internal FAQ, onboarding. You deploy assistants trained on your brand voice, your processes, your products. AI becomes an operational teammate, not a gadget.
AI & Productivity training: here, AI integrated with Notion creates full databases automatically. During the bootcamp, you learn to plug the OpenAI API into your daily tools to automate data management.
Not just OpenAI — all the AI platforms you will master in our bootcamps.
An OpenAI training that only talks about OpenAI is already obsolete. The AI market moves every week. You need to know which model to use, when, and why. Our bootcamps cover the full AI ecosystem, with OpenAI as the technical backbone.
AI APIs: OpenAI, Claude, Gemini, Mistral, Perplexity.
The core of the training. You learn to work with the 5 major AI API platforms, not just the most popular one.
OpenAI (GPT-4o, GPT-4 Turbo, GPT-4o mini): the most versatile. Native multimodal (text, vision, audio). Writing, code, analysis, custom GPTs, Assistants API. The essential Swiss-army knife of AI in 2026.
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Claude (Anthropic): the most rigorous. Massive context window (200K tokens), long-document analysis, structured reasoning. The trustworthy AI for critical content.
Gemini (Google): the AI native to the Google ecosystem. Gmail, Sheets, Docs, Drive. If you live in Google, Gemini becomes your built-in copilot.
Mistral: the European open-weight alternative. On-premise deployment, GDPR compliance, sovereign fine-tuning on your data.
Perplexity: the AI-native search engine. Sourced answers, verifiable citations, automated monitoring. The market's anti-hallucination tool.
Generative AI training: a glimpse of a conversation you will practice during the bootcamp. Prompt engineering, writing, analysis, classification — you learn to pick the right model for each task.
Automation & integration: n8n, Make, OpenAI API.
An AI API without automation is just an expensive chatbot. The real power is when AI runs autonomously in workflows that do the work for you.
Make & n8n: you build scenarios that connect the OpenAI API to your tools. An email comes in, GPT-4o analyzes it, classifies the ticket, drafts the reply, sends it. All without you touching a thing.
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OpenAI API: you learn to call the models directly. Tokens, temperature, function calling, Assistants, threads. The technical foundation for building tailored AI systems without depending on a UI.
OpenAI Platform & Playground: the centralized console to manage your API keys, monitor consumption, deploy your fine-tuned models. The whole OpenAI dev ecosystem flows through here.
AI & No-Code Automation training: an AI agent built on n8n automatically analyzes pitch decks via the OpenAI API, extracts the key points, and generates a structured report. Zero code.
Explore our AI Bootcamp.
OpenAI is the technical leader of the market. But mastering it is not enough. Our AI bootcamps teach you to use it in depth, AND to master the other AIs (Claude, Gemini, Mistral, Perplexity). From your first prompt on ChatGPT to autonomous AI agents via the OpenAI API.
Each bootcamp level pushes your skills further. You learn to pick the right AI for each task, and to optimize costs across providers.
Pick the level that matches your current OpenAI usage.
Intermediate AI Bootcamp 2026: Automate with AI | €890
Intermediate AI · June 26 cohort
Beginner AI Bootcamp 2026: Master AI in 4 Weeks | €890
Beginner AI · fall 26 cohort
Expert AI Bootcamp 2026: AI Agents & APIs in Production | €890
Expert AI · fall 26 cohort
Beginner Bootcamp: get started with OpenAI and get real results.
ChatGPT, GPT-4o, generative AI — everyone talks about it. Few actually know how to use it well. You start by understanding how a language model works (GPT-4o, GPT-4o mini), what it can do and, more importantly, what it cannot. You also discover the alternatives: Claude, Gemini, Perplexity, Mistral.
You learn to write prompts that produce usable results. Not "write me an article" but structured, contextualized instructions that produce pro-grade content. You test ChatGPT and custom GPTs on your own use cases: writing, analysis, research, brainstorming.
By the end of the beginner bootcamp, you can use GPT-4o and the other AIs day-to-day. You distinguish each model's strengths. You produce quality content in 10 minutes instead of an hour. And you understand how the OpenAI API opens the door to advanced use cases.
Intermediate Bootcamp: connect the OpenAI API to your tools and automate.
The real power of OpenAI is when you connect it to your tools. You learn to use the OpenAI API and the Assistants API to build assistants configured for specific tasks. You plug them into your data, your processes, your business.
Then you move to automation with Make and n8n. A lead arrives in your CRM? GPT-4o analyzes it and drafts a personalized email. A document is uploaded to Google Drive? The Assistants API extracts it, summarizes, classifies the info. All of it running on autopilot.
You also discover function calling: GPT-4o can directly call your business tool APIs (CRM, Notion, Airtable, Slack), execute actions, update data. AI moves from answer tool to action tool.
Expert Bootcamp: OpenAI API, AI agents and autonomous systems.
You go under the hood. You learn to call the OpenAI API directly: API keys, tokens, temperature, system instructions, function calling, threads, runs. You use embeddings to build your semantic search. You master fine-tuning to adapt GPT-4o to your proprietary data.
You build autonomous AI agents via the Assistants API: systems that chain calls, make decisions, execute actions on your tools. An agent that monitors KPIs, detects anomalies, drafts a report, sends it to Slack. All without human intervention.
You also learn DALL-E 3 for marketing visuals and Whisper for audio transcription. This level is technical, concrete, and directly deployable in production.
The bootcamp format: why it works better than a standard OpenAI course.
Evening and lunch sessions, designed for working professionals.
We know you have a real job on the side. Our bootcamps are designed to fit your schedule, not replace it. Live sessions run in the evening (6:30–8 PM) and at lunchtime (12:30–2 PM). You pick your slot, attend live, and if you miss a session, the replay is available within 24 h.
10 participants max per level: tailored, not a lecture hall.
OpenAI trainings with 50 or 100 participants — we know the result: one trainer talking, 99 people scrolling on their phone. Here, it's 10 participants max. You ask your questions on GPT-4o and the API, share your screen, show your real use cases. The trainer adapts examples to your role, not to a generic persona.
70% hands-on, 30% theory: you leave with shipped projects.
We don't ask you to take notes while a trainer talks for 3 hours. Each session alternates between 30% theory (concepts, frameworks, OpenAI best practices) and 70% practice (live exercises, real cases, projects to ship). By the end of the bootcamp, you have a portfolio of concrete projects, not a PDF certificate.
Who teaches these OpenAI and AI trainings? (and why it is different)
Most OpenAI trainings are run by trainers who read the OpenAI docs the day before. At Hack'celeration, it's the opposite: we teach OpenAI because we deploy it every day for our clients. OpenAI API, Assistants, function calling, fine-tuning, agents: it's our daily routine.
An active AI agency, not a theoretical training center.
Hack'celeration is first and foremost an agency specialized in AI, automation and growth hacking. Every week, we build n8n workflows connected to the OpenAI API, deploy agents via the Assistants API, set up RAG systems on client data, and automate processes for companies of all sizes.
What that changes for you: everything we teach, we practice. The case studies are not from a textbook. They are projects shipped this week, problems solved live. OpenAI is our main technical backbone within an AI stack that also includes Claude, Gemini and Mistral.
Hack'celeration Trustpilot reviews: verified alumni feedback, openly accessible. Founders, freelancers, marketing, ops — they validate the field-tested approach.
300+ professionals trained with measurable results.
More than 300 people have already taken our trainings, from solo freelancers to employees of large international groups. Our strength is adapting the same concept to wildly different business realities.
We've worked with SMB founders automating prospecting with GPT-4o, data teams switching to the Assistants API for internal analysis, and devs adopting function calling to plug AI into their tools. Trustpilot rating: 4.7/5 on verified reviews.
Certified France Num Digital Activator & AI Ambassador.
Hack'celeration is recognized by the French State as a France Num Digital Activator, a label awarded to organizations capable of supporting the digital transformation of French companies.
We also hold the AI Ambassador title, awarded by France Num for our ability to democratize artificial intelligence among small and medium businesses.
Everything about our OpenAI training.
01How much does the OpenAI training cost?+
02How long is the OpenAI API bootcamp?+
03Is the OpenAI training live or pre-recorded?+
04How do I enroll in the OpenAI training?+
05Do I need coding experience to learn the OpenAI API?+
06OpenAI vs Anthropic Claude: which AI API should I learn first?+
07Does the bootcamp cover only the OpenAI API or all AI platforms?+
08What are the best use cases for the OpenAI API in business?+
09How do I integrate the OpenAI API with my existing tools (CRM, Notion, Slack)?+
10Will I be autonomous on the OpenAI platform after the training?+
11GPT-4o vs GPT-4 Turbo: which OpenAI model should I use?+
12Is the OpenAI training online or in-person?+
Master OpenAI and the rest of the AI stack.
Reserve your spot for the next cohort — 10 seats max per level, live sessions evening or lunch, €890 incl. tax all in.
