Math videos that
Name any topic. In about a minute, Mathos writes, voices, and animates a full explainer — then changes anything you ask.
✓ Real narrated, animated video — not a slideshow✓ Watch it build itself, live✓ Change anything, live
Calculus · Maximize Rectangular Area with Fence
5M+ students · 100M+ problems solved · YC W24 · ★ 4.9
Paste a problem.
Get a lesson.
Describe a concept or paste a problem — Mathos writes, voices, and animates a finished explainer in about a minute.
Change anything, live.
Recolor it, move a step, or drag the numbers — the whole lesson re-solves instantly. No rebuild, no round-trip.
Click a diagram or curve in the video to edit it · space to play.
General AI guesses at math.
Mathos verifies it.
01
Parse the math
The prompt becomes a structured, solved plan before a single frame is drawn.
02
Verify every step
A second pass checks the working — so what you watch is correct, not just plausible.
03
Render editable
Every equation, label, and beat stays tied to the math — which is what keeps it editable.
Classroom quality
Good enough to put in front of students.
Brings the concept to life
Abstract ideas become animation — a limit converging, a vector rotating — so it clicks the way a wall of text never will.
Explained step by step
A clear narrated walkthrough takes every step in order — building real understanding, not just landing on the answer.
Curriculum-aligned
Built on the curriculum
Every video is tagged to subject, grade, and standard knowledge-point names — so what you ship maps straight to what schools teach.
K–12 standards
College admissions
Advanced Placement
Int'l BaccalaureateFast & accurate enough to ship
Lessons in seconds, verified before delivery.
First frame in 5–10 seconds, a full video in under a minute — and dual background agents check the math before anything ships.
Who it's for
One engine. Every way you teach.
For teachers & creators
Turn any topic into a lesson
Type a problem or paste a worksheet and get a narrated, animated explainer — ready before class.
For schools & teams
A consistent video library
Generate on-brand explainers across a whole curriculum, with the throughput one creator can't match.
For developers
Generate videos via API
Call the Mathos API to turn your own problem sets into math-explainer videos, at scale.
Proven at scale
100K+
Videos generated
3,000+ hrs
Of video generated
150+
Countries reached
1M+
Learners reached
Create your first video with Mathos AI
Turn any question into an animated lesson — for a single study session or a whole course library.
Create a video freeFree to start · 3-day trial on paid plans · Cancel anytime