Explainer videos that draw themselves in under a minute

Type a prompt or drop in a document. Chasca writes the script, draws every scene and narrates it in your language and style, for a fraction of what an agency would charge.

Drop in a document, audio, video, or a link. PDF, Word, PowerPoint, MP3, MP4, or any article link.

Why Chasca exists

Explaining is the hard part.

Everyone has something worth explaining: a product, a policy, a lesson, a genuinely hard idea. The explaining is where it stalls.

  • The forty-page doc nobody reads past page two.
  • The hour-long recording nobody finishes.
  • The slide deck that only made sense in the room.

People understand faster when they watch an idea being drawn while someone talks them through it. That used to mean a studio, a scriptwriter and a two-week turnaround. Chasca does it in about a minute, and hands you something you can still change.

Feed it anything. Ship it anywhere.

Feed it

  • PDF
  • Word
  • PowerPoint
  • Markdown
  • Audio
  • Video
  • Links

Export-ready for

  • YouTube
  • TikTok
  • Instagram
  • LinkedIn
  • X

Agents

  • Claude
  • Cursor
  • + any MCP client
  • Under a minute from prompt to finished video
  • Scene-editable fix one scene, not the whole video
  • 30 narrators one voice across every language
  • 79 languages narrated, labeled and captioned
  • From $9.99/mo and your first 2 videos are free

How it works

From a prompt to a finished video in four steps.

  1. 1

    Drop anything in

    Type a prompt, upload a PDF, a deck or a recording, or paste a link. Pick a length, a voice and a drawing style, or let Chasca choose.

  2. 2

    Watch it draw

    Chasca writes the script, storyboards every scene and draws it stroke by stroke, in time with the narration. Usually in under a minute.

  3. 3

    Fix what is off

    Every scene stays editable. Reword a line, relabel an icon, recolor it, or describe the change in plain words. Only that scene re-renders.

  4. 4

    Ship it

    Download an MP4 with subtitles, share a link, or fetch it through the API. Landscape for YouTube, vertical for TikTok and Reels, square for LinkedIn.

Edit one scene and only that scene renders again. The rest of the video stays exactly as it was.

The scene editor

Scenes, not takes.

Most video tools hand you a flat file: if one line is wrong, you start again. A Chasca video is a set of scenes you can open, change and re-render one at a time.

  • Edit the heading, the narration and every label
  • Swap an icon, recolor it, or keep it line-only
  • Step through scenes with Previous and Next
  • Describe a bigger change in plain language
  • Save, and only that scene re-renders, in seconds
The Chasca scene editor: scene 3 of 4 drawing itself, with fields for the heading, narration, icon labels and colors, a box to describe a bigger change in plain language, and a button to save and re-render just this scene.

Why Chasca

Made for people who explain things for a living.

A full video in under a minute

Script, storyboard, narration and drawing, done while you are still deciding what to call the file. No timeline, no keyframes, no render queue.

  1. Script
  2. Storyboard
  3. Narration
  4. Drawing

Built on learning science

Eleven evidence-graded design laws, checked by machine on every video before a second of narration is recorded.

Read the science

Length you control

Pick 30-second steps from 0:30 to 6:00. Ask for more and you get a chaptered series, not one long video people abandon.

A fraction of the usual cost

Studios quote explainers by the finished minute, usually in the thousands. Chasca starts at $9.99 a month.

API and MCP from day one

Generate, edit and fetch videos from your own code, or hand the job to Claude, Cursor or any MCP client.

POST /v1/explainer

Pricing

Pay for minutes. Everything else is included.

Every plan comes with the full scene editor, every voice and every drawing style. Seats and workspaces are unlimited.

Solo

For your first quick, shareable explainers.

$9.99 / month

or $5.99/month billed yearly

40 minutes every month

  • The full scene editor, all voices, all aspects
  • Edits re-render one scene, not the whole video
  • Overage $0.50/min beyond your 40 (2x, opt-in)

Plus

For getting real work out the door.

$19.99 / month

or $11.99/month billed yearly

100 minutes every month

  • The full scene editor, all voices, all aspects
  • Edits re-render one scene, not the whole video
  • API + MCP access included

Pro

Most popular

For creators and teams shipping regularly.

$49.99 / month

or $29.99/month billed yearly

300 minutes every month

  • The full scene editor, all voices, all aspects
  • Edits re-render one scene, not the whole video
  • API + MCP access included
See full pricing

Annual billing saves 40%. Max, Team and Enterprise plans for bigger volumes.

FAQ

Questions, answered.

Still curious? The docs go deeper, and the pricing page has a way to reach us.

Sign up and make 2 videos, up to a minute each, with the whole product: the script, the drawing, the narration and the scene editor. Free videos carry a small “Made with Chasca” mark in the corner. No card, no trial clock.

Most videos are ready in under a minute from the moment you press generate. Longer videos take a little more. Edits are quicker still, because Chasca only re-renders the scenes you changed.

Paid plans start at $9.99 a month for 40 rendered minutes, and paying yearly takes 40% off. Rendered minutes are the only thing we meter; seats and shared workspaces are unlimited. See every plan.

Yes. Your first 2 videos are free, up to 1 minute each, watermarked. No card required. You get the full product, scene editor included, so you can judge it on a real video about your own topic.

A one-line prompt, or a source: PDF, Word, PowerPoint, Markdown or plain text; audio (MP3, WAV, M4A and more); video (MP4, MOV, WebM); or a link to an article. Chasca reads the whole thing, finds the idea worth explaining and writes the script from your material, so the numbers in the video match the numbers in the document.

30 expressive narrators, led by Sulafat, the default, and every one of them speaks all 79 languages in the same voice, so a course keeps one narrator from English to Japanese. They perform with feeling: each scene gets its own tone, and the script can ask for a whisper, a laugh or a pause. Leda is a bright voice for younger audiences. Browse the voices.

From 30 seconds to 6:00, in 30-second steps, or leave it on auto. Ask for more than six minutes and Chasca plans a chaptered series instead of one long video, because attention falls off sharply after six. Here is the research.

Yes, from day one: a REST API, a TypeScript SDK and CLI, and an MCP server, so Claude, Cursor or any MCP client can make and edit videos for you. API access comes with Plus and above, and API or MCP generations use plan minutes at 2x. Read the docs.

Chasca is built by a small, independent team that got tired of watching good ideas get lost in long documents. We try to show our work: the quality gate every video passes is a port of the open-source explainer-evals harness, and the drawing engine on this page is the same one that renders your final MP4.

Your next explainer takes under a minute.

Your first 2 videos are free, up to 1 minute each, watermarked. No card required. Full product, scene editor included.