SpecialistFocuses specifically on interactive programming and coding lessons, whereas Brilliant covers broad STEM and math concepts.
Brilliant records 2,426,610 monthly visits with -11.9% month-over-month growth and Freemium pricing. HeyCLI records 814 monthly visits with -29.7% growth and Free pricing.
Turn plain English into ready-to-run Linux commands at the prompt
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | brilliant.org | heycli.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 2.43M (2,426,610) | 814 (814) |
| MoM Traffic Delta | -326.35K (-11.9%) |
| -344 (-29.7%) |
| Primary Market & Share | 🇺🇸 United States (41.9%) | 🇺🇸 United States (72.1%) |
|---|
| Direct Visits / mo | 1.2M | 324 |
|---|
| User Rating | 4.6 | 4.1 |
|---|
| Supported Platforms | Website | Website |
|---|

Interactive math, coding and AI tutoring you learn by doing
Learn math, science, CS and AI through short, visual exercises that build intuition step by step rather than passive video watching.
A visual, interactive tutor that works on a shared canvas, asks guiding questions and gives hints without simply revealing the answer.
Quizzes and reviews adapt to your level, tracking what you have mastered and resurfacing topics that still need work.
Write and run real code to learn programming logic, algorithms, data structures and debugging skills relevant to the AI era.
Turn plain English into ready-to-run Linux commands at the prompt
Describe what you want to accomplish in ordinary English and receive a Linux command that matches the intent.
The helper works from the command line itself, so you avoid context switching to a browser or documentation site.
A simple keyword prefix lets you call the assistant only when you need it, keeping normal shell usage unchanged.
Setup instructions are distributed through the project's GitHub repository, and the site collects email addresses for release news.
SpecialistFocuses specifically on interactive programming and coding lessons, whereas Brilliant covers broad STEM and math concepts.

SpecialistYour personal AI tutor for every subject, from notes to exam day.

SpecialistProvides deep interactive training for data science and programming, but omits foundational math and general science topics.

The AI coding agent that turns ideas into shipped software

The coding agent that learns your coding taste

SpecialistAI-powered A Level and GCSE courses with a top-grades-or-refund guarantee
Learn Linux, DevOps, and cybersecurity by doing — inside real online labs.

AI-powered terminal and agentic software factory for development teams

Excels at step-by-step homework solving and AI tutoring, but provides less structured visual concept-building courses.

SpecialistProvides adaptive daily math and logic practice for children, but has less emphasis on advanced visual science lessons.

An AI buddy on your computer that sees your screen and walks you through anything

Offers Socratic AI tutoring and problem guidance, but lacks Brilliant's signature interactive visual math and science puzzles.

The coding agent that learns your coding taste
Learn Linux, DevOps, and cybersecurity by doing — inside real online labs.
Excels at step-by-step homework solving and AI tutoring, but provides less structured visual concept-building courses.
An AI buddy on your computer that sees your screen and walks you through anything
Offers Socratic AI tutoring and problem guidance, but lacks Brilliant's signature interactive visual math and science puzzles.