Code that really runs
Programs are run in a sandbox, and every output shown is real.
An AI educational video maker that goes straight to the answer.
Ask a question in coding, maths, science or the humanities. Demovanta writes a lesson that solves it step by step, drawn on a code editor, a notebook or a timeline, and narrated like a good teacher.
Accurate, to the point, and never boring.
Most learners already know the basics. They want their question answered, clearly and correctly. Demovanta goes straight to the solution and explains each step the way a teacher at the board would, naming the rule behind a step where it is not obvious. Ask for the basics and it covers them first.
Nothing in a lesson is guessed. Code is really run, and the terminal shows exactly what it printed. Maths and science working is checked by a maths engine before it is narrated, so the answer on screen is the answer.
Lessons are drawn on their own stages: a code editor, terminal and browser for coding; a notebook and figure board for maths and science; a text page and timeline for the humanities. The narration is lively and clear, in any of 57 languages.
From a question to a lesson.
Ask the question
For example: if x squared is 2 and y squared is 5, what is x plus y? Add a reference link if you have one.
Read the lesson plan
See what the lesson will cover and change it in the chat.
Pick a lesson type
Straight to the answer, a worked example, fix the bug, a proof, and more.
Watch it
A narrated lesson video, with chapters, that takes as long as the answer needs.
Every answer is checked before it is taught.
Working that is checked
Maths and science results are checked by a maths engine before they are taught.
Drawn, not slides
Code typed in an editor, working written line by line, graphs and shapes drawn as the lesson goes.
Only as long as it needs
The length you pick is a ceiling. A short question gets a short lesson.
What it teaches.
Coding
Python, JavaScript, HTML, SQL and more, built and run on screen.
Maths
Algebra, geometry, calculus and statistics, solved line by line.
Science
Physics and chemistry problems with units kept through every step.
Humanities
History, literature and social studies, on a text page and a timeline.
Pricing choices
Every account starts with free welcome credits and no card. When they run out, choose pay-as-you-go, a top-up, or a Basic, Plus or Pro plan.
Review pricingFrequently asked questions
Does it teach the basics first?
Only if you ask. By default the lesson goes straight to the solution and explains each step as it goes.
How do I know the answer is right?
Code is really run and maths is checked by a maths engine before the lesson is narrated.
How long is a lesson?
You choose the most it may run, from five minutes to an hour. A simple question takes far less.
Do I need a link?
No. A question is enough. A tutorial or article can be added as a reference.
Does Demovanta start making anything before I sign in?
No. Your request waits until you sign in. Nothing is read, generated or charged before that.
Can I review the plan before the video is made?
Yes. Demovanta shows you what the video will cover, in order, and you can change it in the chat before anything renders.
Do I need a card to try it?
No. Every account starts with free welcome credits and no card. When they run out you choose pay-as-you-go, a top-up or a subscription; nothing is charged automatically.