Katechon ArcAI short drama generatorMulti-episode dramas with a recurring cast.Novel to short dramaAdapt long-form fiction into episodes.Script to storyboardShot-by-shot boards before video.AI video ad generatorProduct ads from a brief and photos.Vertical 9:16 dramaPortrait episodes for mobile feeds.
When Arc is the right tool
- Stories that run across many shots or episodes with the same characters and locations.
- Adapting existing writing — a novel, a script, a treatment — rather than prompting clip by clip.
- Product ads where the product has to look like itself in every shot.
- Teams that want to review a script and storyboard before spending on video.
One workflow underneath
Every use case runs on the same production pipeline, so skills and assets carry over between dramas and ads. See how Arc works for each stage.
- Start with a premise, a script, a novel or a product brief. Upload source text or type the idea into the studio.
- Plan the episodes or the ad. The agent drafts a script plan; you review and confirm it before episode scripts are written.
- Build references for characters, locations, props and products, so every shot draws on the same visual foundation.
- Storyboard each shot and adjust framing, action and pacing before you spend credits on video.
- Generate video and voice shot by shot, and regenerate any individual shot that misses.
- Assemble the film, then download it or export a Jianying draft for further editing.
When another tool may fit better
- A single standalone clip from one prompt: a plain text-to-video tool is quicker.
- Real-time talking avatars or live video: Arc renders finished shots, not live streams.
- Frame-accurate editing of existing footage: use a video editor; Arc can export a Jianying draft to one.
Plans start at $12.90/month for 1,800 credits. See pricing and model credit costs.