You want to build real AI skills, and three doors are open: a course bought on Udemy, hours of free tutorials on YouTube, or a subscription to a specialized platform. All three work — just not for the same goal. The difference isn't the sticker price: it's the time you spend searching, the tool subscriptions you end up paying for on the side, and what you can actually prove at the end.
A video course explains what an image generator is for; it doesn't give you access to the generator. A tutorial published eight months ago often describes an interface that has already changed twice. And a certificate of completion doesn't carry the same weight as a state-registered certification.
Here are the three approaches in detail, their real costs once you add everything up, and a simple grid for choosing: ship fast, understand deeply, or get your level recognized on a resume.
Option 1: The dedicated platform — learn and produce in the same place
A dedicated platform solves the problem neither Udemy nor YouTube solves: it gives you the course and the tools in a single subscription, with a structured path and a certification at the end.
That's the idea behind Skilzy. You'll find more than 15 programs covering the practical uses of generative AI: creating images, producing videos (UGC content, ads, faceless channels, avatars, voiceovers), composing music, automating tasks with n8n, writing prompts that give usable results, and coding with AI. You can browse Skilzy's AI programs to see which ones fit your line of work.
The real difference is the built-in AI Lab. During the training, you use the actual tools right inside the platform, with credits included. You don't watch someone generate a video: you generate it. And you don't have to stack four separate €25-a-month subscriptions just to follow along with the exercises.
The second difference is recognition. Skilzy prepares you for two certifications registered with France Compétences — and therefore eligible for funding: RS7439 (AI-assisted content marketing) and RS6792 (AI and sales). You can verify them directly on the France Compétences RS7439 record. That kind of registration is what unlocks funding schemes, unlike a simple course-completion certificate. If you want to compare the credentials out there, the article on state-recognized AI certifications breaks down which ones are worth it.
On pricing, the consumer plan starts at €29.90 per month, with no commitment. There's also a B2B offer for training organizations that want to provide AI tracks without building the content themselves.
To try it before paying anything, the discovery demo gives you 7 days of access with no credit card: 1 image, 1 video, 1 music track, and 10 messages. You create an account, produce your first pieces of content, and decide afterward.
The downsides, because there are some: it's a monthly subscription, so a recurring cost for as long as you're learning. And the catalog focuses on professional uses of generative AI, not on theoretical research or the math behind machine learning. If you want to understand how backpropagation works, this isn't where you'll go.
Option 2: Udemy — the à la carte course library
Udemy is the best choice when you're after one specific technical skill, you're willing to filter for quality yourself, and you pay for the tools separately.
The catalog holds tens of thousands of courses, many of them on AI: prompt engineering, automation, building with language models, image generation. You buy a course, you get lifetime access, and a 30-day refund guarantee covers you against bad surprises. Individual courses are frequently on sale between €10 and €20, nowhere near list price.
This model has genuine advantages. You pay once, you come back whenever you want, and for a stable topic (Python basics, the logic of an automation workflow) it's unbeatable value.
The caveats are just as real:
- Quality varies wildly. Anyone can publish. Ratings and enrollment numbers are your only reliable filters, along with the last-updated date shown on the course page.
- Updates aren't guaranteed. In generative AI, a 2024 course can describe interfaces and models that no longer exist. Always check the ‹Last updated› line.
- Tools aren't included. A course on AI video assumes you're paying for the generator's subscription yourself.
- No state-recognized certification. You get a Udemy course-completion certificate, which isn't a registered credential and doesn't unlock public funding for an individual.
- Lots of English-only content, especially on the newest topics.
- No structured support. There's a Q&A section, but instructors aren't required to answer.
So Udemy is excellent as a supplement, less suited if your goal is a complete path leading to proof of skill you can put in front of an employer.
Option 3: Free YouTube — the cheapest, fastest way in
YouTube is unbeatable for discovering a tool and staying current, but it's the approach that costs the most in time if you don't impose your own structure.
When a new model drops, creators publish a walkthrough within 48 hours. No paid platform moves that fast. For answering a specific question (how does this setting work, what does this interface look like), it's often the quickest answer — and it's free.
The problem isn't video quality, it's the format. A YouTube video is optimized for audience retention, not for learning progression. The result: you pile up dozens of isolated concepts without ever building a complete project. Many creators also make a living from affiliate links, which naturally shapes their tool recommendations. And nobody reviews your work: you have no idea whether your prompt is bad or you're using the wrong tool.
If you go this route, a few rules make it far more effective:
- Filter by date. Use the ‹this year› filter and be skeptical of anything older than six months when it comes to generative AI.
- Cross-check against the official docs before applying a method. Interfaces change faster than videos do.
- Pick a project, not a topic. ‹Produce ten visuals for my product page› will get you further, ten times faster, than ‹learn AI›.
- Follow an ordered playlist instead of scattered videos, and finish it before starting another.
- Block a fixed time slot. With no deadline and no commitment, drop-off is the main weakness of free learning.
One thing to keep in mind: YouTube leaves no record of your learning. For a resume or an interview, all you can show is your work — which means you actually have to produce some.
The real cost of all three, once you add everything up
The sticker price tells you almost nothing: add the tool subscriptions and the time spent, and the ranking often flips.
This is the line item most comparisons forget. Any serious AI training means generating images, videos, voices, sometimes music. Bought separately, those tools commonly run €20 to €30 per month each. Three tools and you're already at €60 or €90 a month, on top of the course.
| Criterion | Dedicated platform (Skilzy) | Udemy | YouTube |
|---|---|---|---|
| Sticker price | From €29.90/month, no commitment | €10 to €20 per course on sale | €0 |
| Access to AI tools | Included via the AI Lab (credits included) | Not included | Not included |
| Structured path | Yes, 15+ programs | Varies by course | Build it yourself |
| Content updates | Ongoing | Depends on the instructor | Very fast, but uneven |
| Certification | RS7439 and RS6792, state-registered | Course-completion certificate | None |
| Funding available | Yes, through training funding schemes | No, not for an individual | Not applicable |
| Time to first result | A few hours | A few days | Highly variable |
On funding: registered certifications can be covered by several schemes depending on your situation (employee, freelancer, job seeker). The official starting point is still Mon Compte Formation, and the possible routes are laid out in our guide to funding your AI training.
How to choose based on your goal
Choose based on what you want three months from now, not on next month's price.
You're curious and want to know whether the subject is for you. Start with YouTube for two weeks, on a specific project. If you haven't opened a video in ten days, you have your answer and you've spent nothing. Alongside that, the 7-day no-credit-card discovery demo lets you produce an image, a video, and a music track to see what the real tools deliver.
You need one isolated technical skill. A well-rated, recently updated Udemy course will do the job for very little money — provided you already have access to the tools involved.
You want to change roles or careers, or prove a skill to an employer. Here, certification becomes the deciding factor, because it's the only thing a third party can verify. A dedicated platform with a registered credential is the shortest path. If you're still thinking it over, the article switching careers into AI: where to start lays out the first steps.
You're a freelancer or run a small business and you want to produce right now. The criterion becomes total cost: add up the training subscription and the tool subscriptions. That almost always favors a solution where the credits are included. To go deeper on selection criteria, our analysis of the best online AI training in 2026 details what to look at before you pay.
Nothing says you have to pick just one lane, by the way. The most effective combination is often a structured path for progression and certification, plus YouTube for your weekly check-in on what's new.
The takeaway
YouTube costs zero euros and a lot of time. Udemy costs little and leaves you to handle the tools, the updates, and the proof of skill on your own. A dedicated platform costs a monthly subscription and saves you on all three. The right instinct: start from your three-month goal, add up the cost of the tools you'll need, and check whether what you end up with is verifiable by someone other than you. Still on the fence? Test it risk-free: 7 days, no credit card, is enough to know whether the format works for you.
