The fastest free route to competence with any AI tool is the training its makers publish, and AI Central's Complete Free AI Learning Library gathers that training into one map. Eight tracks, ChatGPT, Claude, automation, Gamma, Gemini, Midjourney, Perplexity and Sora. Seventeen resources in total, every one of them free and first-party. Each track opens at fundamentals and climbs into prompting technique. Material is not the bottleneck here. Choosing a single track and finishing it is.
Reviewed August 2026.
What the library covers
AI Central built the collection as an index, not a course. Each section names one tool, and underneath it lists the official learning resources published for that tool, in the order a beginner would meet them. No proprietary curriculum sits on top of it. The editorial work is selection and sequencing, and that is the whole value.
The eight tracks, and what each one points at, run in this order.
- ChatGPT, with three entries, ChatGPT Fundamentals, ChatGPT for Any Role, and a Prompting Masterclass, listed alongside OpenAI Academy.
- Claude, with Claude Basics followed by Advanced Claude Prompting Techniques.
- Automations, with Zapier Learn's Build Your First Zap and Lindy Academy's Lindy 101.
- Gamma, with the Gamma Prompt Library and Gamma Inspirations.
- Gemini, with a Gemini Prompting Guide, Gemini Deep Research, and Gemini Veo-3 Video Generation.
- Midjourney, with Get Started with Midjourney, Midjourney Prompt Basics, and Everything About Midjourney.
- Perplexity, with a single entry, the Perplexity Labs Guide.
- Sora, with Sora Basics.
Those figures come from counting the collection itself, eight sections each headed Master, and seventeen individual resources listed beneath them. Automations is the only section spanning two separate platforms, and Perplexity and Sora are the only two carrying a single entry each.
Why the free material is the good material
Paid AI courses mostly sell packaging. The underlying material already exists free on the maker's own site in almost every case, because a tool company has a direct commercial interest in you becoming good at its product. AI Central pointing outward rather than building yet another curriculum is a bet on that asymmetry, and it is the right bet.
Vendor training also carries the shortest update path in the category. When a model changes behaviour or a feature ships, the team that shipped it owns the documentation. A third-party course freezes a version and starts ageing the day it publishes.
The limitation deserves stating plainly. Vendor training optimises for its own surface area. It will teach you every corner of one product and will never tell you when a rival does the job better, which is precisely why AI Central's collection covers eight of them side by side rather than going deep on one.
Every track is a ladder, and the rungs are the point
The most useful thing here is not the links. It is the shape that repeats inside track after track.
ChatGPT gets three rungs, ChatGPT Fundamentals, then ChatGPT for Any Role, then the Prompting Masterclass. Claude gets two, Claude Basics, then Advanced Claude Prompting Techniques. Midjourney gets three, Get Started with Midjourney, then Midjourney Prompt Basics, then Everything About Midjourney. Orientation, then application, then prompting depth, in that order almost every time.
Most people climb the first rung and stop, and that is the plateau problem in one sentence. Basics teach you where the controls are, and knowing where the controls are produces mediocre output indefinitely. The quality jump lives on the prompting rung. Five of AI Central's eight tracks carry a dedicated prompting entry, ChatGPT, Claude, Gamma, Gemini and Midjourney, which tells you where the editors think the leverage sits.
The ChatGPT section reproduces one line of framing next to its OpenAI Academy listing, and it doubles as the argument for the whole collection.
Unlock the opportunities of the AI era by equipping yourself with the knowledge and skills to harness artificial intelligence effectively.
Equipping yourself is the operative phrase in that line. AI Central is not offering to teach you. It is telling you where the teaching already sits, free, and leaving the finishing to you.
The automation track is the leverage step
Automations is the section most readers will skip, and it is the one that changes the most about a working week. AI Central lists two entries in it, Zapier Learn's Build Your First Zap, and Lindy Academy's Lindy 101.
Both names give away the level. A first build, and a 101. That is deliberate and it is correct. Chat tools save you minutes inside a task you still perform yourself. Automation removes the task from your day, and the gap between those two outcomes is far larger than the gap between a good prompt and a bad one.
Two entries is also the smallest ask in the collection, set against ChatGPT's three and Midjourney's three. For the highest leverage step in the set, that is a cheap door.
Research, decks, images and video
The remaining tracks divide by output type rather than by vendor loyalty, which is the right way to organise them when you are choosing a tool for a job instead of collecting subscriptions.
Perplexity covers research, with the Perplexity Labs Guide. Gamma covers decks, and gets a pairing worth stealing as a learning pattern, a Gamma Prompt Library on one side and Gamma Inspirations on the other. Input patterns paired with finished output. That is genuinely how generative design tools get learned, you take a prompt that already works, run it, then bend it toward what you actually need.
Video shows up twice in AI Central's map and in two different places, Gemini Veo-3 Video Generation inside the Gemini track, and Sora Basics standing alone. Images belong to Midjourney, which carries the deepest ladder in the collection, three entries running from Get Started through prompt basics to Everything About Midjourney.
What to do with it this week
AI Central closes with an instruction rather than a recap, three short imperatives, try it, learn fast, get your best results, under a blunter line.
Don't wait for inspiration
Good advice, and vague enough to ignore, so here is the concrete version, sorted by where you are starting from.
- If you have never used any of these seriously, pick the one tool you already open most days, do its basics entry, then do its prompting entry in the same week. Two sittings, one tool, no browsing.
- If you are already comfortable in ChatGPT or Claude, skip the basics rung entirely, start at the prompting entry, then use ChatGPT for Any Role to translate technique into the work you actually get paid for.
- If prompting is no longer your constraint, go straight to the automations track and build one Zap end to end. A single working automation will teach you more than three more prompting guides.
- If you produce anything visual for a living, take exactly one media track, Gamma for decks, Midjourney for images, Sora or Veo-3 for video, and finish it before opening another.
The failure mode with a map this broad is obvious, and AI Central more or less names it in the closing line. Seventeen open tabs is not learning. One finished track is.
Is all of this actually free?
Yes, and that is the organising premise. Every entry AI Central lists is training published by the company that builds the tool, from OpenAI Academy through Zapier Learn and Lindy Academy to Google's Gemini prompting material. What the collection adds is selection and order, not access.
Where should I start if I only have an hour?
Take the prompting entry for the tool you already use daily. The Prompting Masterclass if that is ChatGPT, Advanced Claude Prompting Techniques if it is Claude, the Gemini Prompting Guide if it is Gemini. If you are already using the tool, fundamentals can wait, because prompting is the rung where output quality visibly changes.
Do I need to work through all eight tools?
No, and attempting it is the most common way to get nothing out of a list like this. The eight tracks are a menu sorted by job, text and reasoning, automation, decks, research, images, video. Pick by the job in front of you and ignore the rest until it becomes the job.
Is vendor training enough on its own?
For learning one tool deeply, it is usually the best material available and it is free. For deciding which tool to use, it is not enough, because no vendor will ever point you at a competitor. That is the exact gap AI Central's collection fills by setting eight of them next to each other.