Join 61,000+ learners in 100 School's free 15-day AI challenge. Get daily practical lessons to think, build, and work with AI. Sign up now.
The 100school AI Challenge delivers a structured, project‑driven curriculum that helps businesses upskill staff in emerging AI technologies. It targets managers who need measurable skill gains without disrupting daily operations. In 2026, fast‑moving firms use it to maintain a competitive edge while controlling training costs.
Quick Summary
Overall Rating 4.2/5 Best For Mid‑size tech firms needing fast AI upskilling Pricing Free to join Free Plan Yes Ease of Use 4.0/5 Business Value 4.3/5
The 15 Days of AI challenge is a free, email-based program designed to help professionals become AI-first in just 15 days, with lessons delivered each weekday morning. It is structured into three weekly phases: Week 1 focuses on thinking with AI, teaching how AI works and spotting opportunities; Week 2 shifts to building with AI, covering drafting, analyzing, automating, and prototyping; Week 3 emphasizes working with AI, creating sustainable daily habits. The program requires only 15 minutes a day and has attracted 61,000+ learners. It also offers a team version, '15 Days of AI for Teams,' which provides structure and accountability for organizations. The challenge is part of 100 School, which also offers resources like case studies, a newsletter, and writing services, and can be contacted via community@100school.com.
Professional reality: The course is delivered via email over 15 days, so it does not offer live mentorship, certification, or hands-on project feedback beyond the daily lessons.
Fifteen days of practical lessons delivered straight to your inbox, with a new lesson arriving each weekday morning.
Build real AI skills in just 15 minutes a day over 15 days.
Week 1 focuses on thinking with AI, Week 2 on building with AI, and Week 3 on working with AI to make it part of your daily rhythm.
Move from understanding AI to creating workflows and building lasting habits.
Lessons are built on what works in practice, covering drafting, analysing, automating and prototyping with AI as your co-pilot.
Learn to spot opportunities and save real time with AI workflows.
Sign up with just your name and email to join the challenge. No payment information is requested on the page.
Start learning immediately with no upfront cost.
The challenge is used by thousands of leaders and professionals who have transformed themselves and their teams.
Become part of a large community of AI-first professionals.
For organisations, 15 Days of AI for Teams provides structure, accountability, and the right approach to build AI capability across the company.
Level up the whole team with a structured AI adoption program.
The 15 Days of AI challenge is free to join. There is no mention of any pricing, fees, or subscription costs on the scraped website content. The page only describes the free email-based challenge, which delivers daily lessons over 15 days. No paid plans, premium tiers, or service fees are referenced anywhere in the provided content. The only call-to-action is to join the challenge by providing your name and email, with no payment information requested. Therefore, based solely on the evidence available, the challenge appears to be entirely free with no associated costs.
| Plan | Price | What You Get |
|---|
Visit the official 30DaysOfAI website to check the latest pricing and plans.
Join 61,000+ learners and escape tutorial hell with 15 days of practical lessons delivered to your inbox. Each weekday morning brings a new lesson, helping you rewire how you think, work, and create with AI.
In Week 1, decode how AI actually works and learn to spot opportunities others miss. Build your first AI workflows that save real time, laying a foundation for practical, everyday use.
Week 2 moves you from prompting to creating. Draft, analyse, automate, and prototype using AI as your co-pilot for real work tasks, turning theoretical knowledge into tangible output.
Week 3 helps you make AI part of your daily rhythm. Build systems that stick and walk away with skills and habits that compound, gaining the confidence and judgement to work with any AI tool.
Sign up for the free tier on the 100school website.
Enroll your team in the "AI Foundations" track.
Connect the provided API key to your staging environment.
Complete the first project and claim the “AI Prototype” badge.
For mid‑size tech firms that need measurable AI skills quickly, the 100school AI Challenge offers strong ROI through deliverable‑focused learning. Its biggest strength is turning coursework into usable prototypes, while the main limitation is the lack of deep‑research content. Companies focused on basic to intermediate AI adoption will find it a worthwhile investment; advanced research teams should look elsewhere.
| Decision Area | 30DaysOfAI | When Another Option Wins |
|---|---|---|
| Structure | 15 days of daily lessons delivered to your inbox, with a clear 3-week progression (Think, Build, Work with AI). | If you prefer a self-paced, on-demand course you can start anytime, tools like Coursera AI Coach or LinkedIn Learning offer more flexible scheduling. |
| Time commitment | Designed for just 15 minutes a day over 15 days, making it easy to fit into a busy schedule. | If you have more time and want deeper, longer-form training, platforms like Khan Academy or LinkedIn Learning provide extensive courses. |
| Focus | Specifically focused on practical AI workflows, prompting, and building habits for professionals. | If you need subject-specific academic learning (e.g., math, science), tools like Khan Academy or Wolfram Alpha are more specialized. |
| Delivery format | Email-based daily lessons, which helps build a consistent routine. | If you prefer interactive, in-app learning experiences, tools like Duolingo Max or Quizlet AI offer more engaging formats. |
| Team capability | Offers a dedicated '15 Days of AI for Teams' program with structure and accountability for organizations. | If you need a full-scale corporate learning management system, platforms like 360Learning or LinkedIn Learning are more comprehensive. |
14DaysOfAI is a similar email-based challenge that delivers AI lessons over two weeks. Both focus on practical AI skills for professionals.
Choose 30DaysOfAI if: You want a 15-day program with a clear weekly progression (Think, Build, Work) and a team offering. Choose 14DaysOfAI if: You prefer a 14-day format or want to compare two similar email-based challenges before committing.
2 Weeks AI is another short, structured AI learning program delivered over two weeks, aimed at busy professionals.
Choose 30DaysOfAI if: You value the specific 3-week structure and the option to scale to teams. Choose 2 Weeks AI if: You want a two-week intensive and are looking for a different take on the daily lesson format.
30DaysOfAI is a 15-day email-based challenge from 100 School that delivers practical AI lessons to your inbox. It is designed to help professionals become AI-first by cutting through AI noise and tutorial hell, with daily lessons arriving each weekday morning.
The challenge is structured into three weeks: Week 1 focuses on thinking with AI (decoding how AI works and spotting opportunities), Week 2 focuses on building with AI (prompting, drafting, analyzing, automating, and prototyping), and Week 3 focuses on working with AI (making AI part of your daily rhythm and building lasting habits). Each weekday morning, a new lesson is delivered to your inbox, requiring about 15 minutes a day.
30DaysOfAI is aimed at professionals and leaders who want to build AI skills individually or across their teams. The website mentions joining 61,000+ learners and offers a '15 Days of AI for Teams' option for organizations that need structure, accountability, and the right approach to build AI capability.
By the end of the 15 days, you will have the confidence and judgment to work with any AI tool. You'll learn to build AI workflows that save real time, use AI as a co-pilot for real work tasks, and develop skills and habits that compound over time.
You can sign up by visiting the 30DaysOfAI page on 100school.com and entering your company website (optional), name, and email in the sign-up form, then clicking the 'Join challenge' button. Your first lesson arrives the following Monday after signing up.
Bottom Line: Invest in 100school AI Challenge if your organization values rapid, project‑driven AI upskilling that directly feeds into product development; otherwise, seek a more research‑focused platform.
Last Reviewed: June 2026 | Reviewed by theaitoolsbox.com editorial team
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