Professional 3D animation,
from your documents and CAD files.

Exact 3D Video (Exact 3D Video) is a web service, based in Japan, that makes professional 3D animation with AI. You describe the video you want in chat and attach your materials. The AI writes a storyboard, builds a 3D animation, and exports an explainer video (MP4) with AI narration and captions. Use it for product videos, showing how things work, business overviews, and more.

Yes. The service is built for explainer videos used at work: product introductions, trade shows, sales, training, manuals, and how-it-works explanations. With payment, you can use videos commercially within the Terms of Service. Attached files are not used to train AI, and your files and finished videos are deleted automatically after 30 days.

Yes. You don't need to use 3D software or video editing tools. Describe what you need in chat and attach your documents, and the AI finishes everything from the storyboard to the 3D scenes, narration, and captions. It's a professional service, but first-time users can use it just the same.

Best for quickly making first drafts of videos at the planning stage and short explainer videos. You receive an MP4, and the original 3D data is not included. For videos polished down to the finest detail, a production company or creator is a better fit.

These are narrated explainer videos: product and service introductions, explanations of a business or how something works, and educational diagrams. Depending on the subject, the video uses 3D models, graphs, text, and camera work. You can check the finished quality in the sample videos for product intros, engineering, chemistry, physics, and business.

Unlike video-generation AI that creates footage directly from pixels, this builds objects in 3D software and then renders them. That keeps part shapes, text, and numbers from breaking down, and lets you use the shape of your CAD 3D model as is. Tell us in chat what you want to fix, and we rebuild from the storyboard.

For a 1-minute video in Standard mode, the storyboard takes a few minutes, the AI's 3D build takes about 30 minutes to 1 hour, and the final 1080p export takes about 1 hour. In High Quality mode, the build and the export each take several hours. Processing continues even if you close the screen.

Below the chat input box, you can choose from 15 seconds to 10 minutes. The video length is determined by the narration read-aloud, so the final result may vary from your setting (roughly ±10%). The storyboard shows an estimated length.

You can attach PDF, Word, PowerPoint, Excel (OpenDocument also works), images (PNG, JPEG, WebP, GIF), text (TXT, Markdown, CSV, JSON), CAD 3D models (STEP, IGES, STL, OBJ, PLY, glTF/GLB, 3MF), and drawings (DXF, DWG). 3D models can be used as is in the video. Up to 30 MB per file, and up to 20 MB in total of materials the AI reads per video (images are shrunk automatically; 3D models are counted separately). For proprietary CAD formats such as SolidWorks, export to STEP before attaching. DWG can be read as is, but tables and some shapes may not load and hidden layers also appear in the drawing, so we recommend exporting to DXF before attaching.

Your data is sent to AI providers (Anthropic and Google) to build your video. Under each provider's business terms, it is not used for AI training. Attached files and deliverables are deleted automatically after 30 days. See the Privacy Policy for details.

Yes. Once the fees are paid, you can use them within the scope of the Terms of Service. Narration is an AI-synthesized voice. See the Terms of Service for details.

You can sign in with your Google or Microsoft account. There is no sign-up with email and password. We don't store your name, email address, or profile picture.

After signing in, buy credits from the Account screen (1 credit = $0.01). Payment is handled on a Stripe screen, and your card details are not stored by this service.

As a guide, a 1-minute video made with 2 small revisions, such as changing the text size, costs about 3,500 credits. Large revisions, such as changing the background, add about 880–1,500 credits each. In High Quality mode, a 1-minute video costs about 7,100–12,000 credits. The cost varies with the video's length and content. Before every run, we show you the estimated credits and the maximum you'll use.

Published price guides put a 3D explainer video from a studio or freelancer at about $1,000 per minute and up, typically 4–12 weeks from brief to delivery. With Exact 3D Video, a 1-minute video with two small revisions is about $35 (about 3,500 credits). However, the quality limits and the work included, such as creative direction, differ, so the two cannot be compared directly. Sources are on our 3D video cost guide page.

Finished videos are automatically deleted 30 days after they're created. To keep a video, save it from My Videos and it stays until the date you choose (6 months, 1 year, or 3 years). The storage fee is paid upfront based on the video's file size and the period. For a 1-minute video, it runs from a few credits to around ten credits for a year. You can pin videos you use often to show them at the top of the list.