TL;DR: Four of the five largest communities on the entire Skool platform are in the Tech/AI category. The biggest has nearly 295,000 members. All of them are free. Here is what they actually are and which one is right for you.
When people ask me which Skool categories are worth paying attention to, I tell them to look at the numbers.
The five largest communities on Skool break down like this: four are in the Tech category, three of those are explicitly AI or automation-focused, and every single one is free to join. That is not a coincidence. AI is where the energy is on this platform right now, and the free communities in this space are some of the most active I have seen anywhere.
Here is a breakdown of the main ones, what they are actually about, and who should join each.
AI Automation Agency Hub: 294,700 members, free
AI Automation Agency Hub is the largest community on Skool. Not the largest Tech community. The largest community across the entire platform.
It was created by Liam Ottley and the concept is straightforward: it is for people who want to start or grow an AI automation agency. The community covers how to build AI systems, how to sell them to businesses, and how to run the agency side of things. The focus is on building a service business around AI tools, not just using AI for personal productivity.
If you are coming in as someone who wants to learn AI for their own career, this might be a bigger community than you need. It is heavily oriented toward people who want to turn AI skills into client work and revenue. But if that is your goal, the scale here is unmatched. Nearly 295,000 people means there is always someone active, always new discussions, and a wide range of experience levels.
Join at: skool.com/learn-ai
View AI Automation Agency Hub →
AI Automation Society: 259,700 members, free
AI Automation Society is the second largest community on Skool with 259,700 members. It is close enough to the Hub that they look comparable at a glance, but the orientation is different.
Where the Hub is about building an agency business, the Society is more about the automations themselves: no-code AI workflows, tool integrations, and systems you can build without being a developer. It attracts people who want to automate their own operations and learn the tools directly.
If you are not interested in starting an agency but you do want to build AI systems and automations for your own business or employer, Society is more aligned with that goal. The community is large enough that you will find active discussions regardless of which specific tools you are working with.
Join at: skool.com/ai-automation-society
View AI Automation Society →
The AI Advantage: 74,100 members, free
The AI Advantage was co-founded by Tony Robbins, Dean Graziosi, and Igor Pogany. It has 74,100 members and is aimed at people who want to use AI to get better results in business and career. Not building agencies, not writing code. Just being more effective at whatever they already do.
The tone here is different from the automation communities. It is more personal development meets AI adoption than technical deep-dives. That is not a criticism. It just serves a different audience. If you are a business owner, entrepreneur, or professional who wants to understand how AI fits into your workflow without going deep on the technical side, this community is a better fit than the 290k-member automation hubs.
At 74,100 members it is still large by any normal measure. Just understand what it is before you join.
Join at: skool.com/the-ai-advantage
View The AI Advantage →
CyberCircle: 84,600 members, free
CyberCircle has 84,600 members and is one of the largest Tech communities on Skool that isn't AI-focused. The emphasis is cybersecurity, a category that gets overlooked in the AI conversation but has a serious and active audience on this platform.
I mention it here because if your interest in "Tech" is more security, ethical hacking, or infrastructure than AI automation, CyberCircle is the largest free option in that lane. It rounds out the Tech category well.
Browse the full Tech category to see all communities ranked by member count.
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How to choose between them
If you join all four, you will get overwhelmed. Here is a simple framework.
Are you trying to start a service business around AI? Start with AI Automation Agency Hub. The whole community is built around that goal. The conversations, the resources, and the people are oriented around client acquisition and agency operations.
Do you want to build automations for yourself or your employer without starting a business? AI Automation Society is the better fit. It is less about selling and more about building. The no-code workflow content is dense and practical.
Are you a non-technical business owner who wants to use AI tools more effectively? The AI Advantage. It is not going to give you technical depth, but it will meet you where you are and give you a more accessible entry point.
One more thing: member count is not the same as quality. These communities are large because they are genuinely popular, not because they are inflated with bots. But large communities can also feel impersonal. If you want to be known in a community rather than just part of a crowd, look at smaller niche communities in the directory too. Some of the best signal-to-noise ratios I have found are in communities under 10,000 members.
Help others decide
If you have been in any of these communities, your review on KoolReviews is worth more than another article. Real members with real opinions are what makes this site useful.
It takes about five minutes to write a review. You do not need an account to browse, and every review you add helps someone else avoid a bad choice or find a genuinely good one.
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You can also use the compare tool to run a side-by-side breakdown of any two communities: member count, price, category, and reviews.
Published February 23, 2026. For the full Tech category rankings, see the KoolReviews directory.