Bugsy, the AI tutor
Bugsy reads your lesson, your code and your last error, then explains what went wrong or gives a hint. It won't hand you the answer to an unsolved challenge. Free and Plus get 3 questions a day; Pro is unlimited.
Updated October 17, 2026
Open Bugsy
In a lesson, press Ask AI in the bar under the editor, Explain challenge in the lesson, or Explain solution on the SOLUTION tab. You can also type your own question.
Bugsy sees the lesson, your current code and your last error, so you don't need to paste anything.
What it does
- Explains the challenge in simpler words
- Tells you why your code failed
- Gives a hint toward the next step
- Explains the solution once you have it
While a challenge is still unsolved, Bugsy won't write the solution for you. If you want it, you can reveal it yourself on the SOLUTION tab.
Daily limits
| Free | Plus | Pro | |
|---|---|---|---|
| Bugsy questions | 3 a day | 3 a day | Unlimited, up to 200 a day |
| Debug | 3 a day | 3 a day | Unlimited |
| Best AI model | No | No | Yes |
New accounts get 20 questions on the day they sign up. Limits reset at midnight in your timezone, and a question that fails to get an answer doesn't count.
Debug
Debug runs your code step by step, so you can watch each line and every variable change. It is available for most languages, from the second chapter of a journey on.
In a class
If you learn in a class, your teacher can set Bugsy to hints only or turn it off for class lessons, and can read your Bugsy chats on those lessons.