MobySlap Cloud
An AI translation solution for film subtitle templates
and translation that reads the whole film, all in one place
MobySlap brings film subtitle template creation and translation together in one AI translation solution. AI automatically creates the templates traditionally made by template authors, while the Anthropic API translates into natural Korean with an understanding of the entire film. Translators and reviewers refine the final tone and wording.
An example of the MobySlap editor. The video and subtitles are for demonstration only.
As of October 2026
Editor
Bringing the MobySlap Local editor to Cloud
AI first draft
Anthropic API integration in development
Team assignment and review
In development
Public service
Not launched yet
How it translates
Translation that reads the whole film and finds the right words for each scene.
MobySlap uses the Anthropic API to translate English dialogue into Korean with an understanding of the entire film. It reads the story and character relationships, beyond just a few surrounding lines, to draft the spoken Korean a character would actually use in the scene. You can set the draft to suit the genre, from drama to reality and documentary, and choose how much strong language to keep. Translators refine the final register, forms of address and sentence endings while watching the film.
AI automates the template author’s work
AI automatically creates the film subtitle templates that template authors have traditionally built by hand. Template creation, translation that reads the entire film, editing and review come together in a single solution.
Demo lines
- Do you remember this place?여기 기억나?
- Of course. We came here every summer.그럼, 여름마다 왔잖아
- It feels smaller now.이젠 좀 작아 보이네
- Maybe we are the ones who changed.우리가 변한 건지도 모르지
The translator has the final say on tone
The first draft is a starting point. Which register to use and where to break a line are calls for the translator, who sees both the source and the scene.
Built around reading speed
Even natural dialogue gets missed if a subtitle runs too long. Every subtitle shows its byte count, the standard length measure in Korean subtitling, along with its reading speed, and overlong subtitles can be reworked with AI. How far to trim is up to the translator.
Editor
The scene and the line, in one view.
Everything you need to fix a line sits right beside it. Below is part of the screen while subtitle 2 is being edited.
Subtitle blocks on the waveformLine each block up with where the speech starts and stops. The waveform above was drawn from a recording of the demo lines read by a synthetic voice.
Workflow
How a project moves through the team
Here is the Cloud workflow we are building, shown with a sample project. Every submission is kept as a version, so the next person always knows which lines to look at.
- Project managerUploads the video, along with an English DOCX script if there is one. The production server runs speech recognition and script checks, automatically creates a film subtitle template with AI, and uses the Anthropic API to draft spoken Korean with an understanding of the entire film.First draft
- Project managerChecks the result and assigns a translator and a reviewer.Assigned
- TranslatorRefines the tone and length of the Draft while watching the scene, then submits it.Submission v1
- ReviewerAsks for changes because two lines don’t match the tone of the scene.Changes requested
- TranslatorFixes the two lines and resubmits. The earlier submission is kept for comparison.Submission v2
- ReviewerApproves it, and the final output is exported from the approved version.Approved
Only one person writes in a project at a time.
MobySlap Local and Cloud
Local stays as it is. Cloud is a separate product that runs production on a server and brings a team’s translation and review together in the browser.
| Feature | MobySlap Local | MobySlap Cloud |
|---|---|---|
| Workspace | Editing workspace in the local app | Translation and review workspace in the browser |
| Production | Speech recognition and Anthropic API first drafts, in the app | Everything from speech recognition to Anthropic API first drafts, on the server |
| Project management | Built around local projects | Work organized by team, role and assignment |
| Saving and handoff | Save and reopen RDX projects, import and export SRT | Working, submitted and approved versions kept apart |
| Korean spell-check | Not included | Our own latest spell-check engine, fast and accurate |
We are starting with small projects. Early testing happens in-house, and we will share the scope, data-handling terms and pricing of the customer pilot once they are set.
FAQ
Who creates the subtitle templates?
MobySlap uses AI to automatically create the film subtitle templates traditionally made by template authors. Those templates provide the starting point for translation that reads the whole film, followed by editing and review.
Which AI writes the first draft?
We use the Anthropic API to translate with an understanding of the entire film. It reads the story and character relationships to draft spoken Korean that fits the scene. Translators and reviewers decide the final wording.
Do I need to attach a script?
No. The first version takes one video, plus an English DOCX script if you have one. When there is a script, we check the speech recognition results against it to prepare the source text.
Can translators change the source text and timing?
Translators edit the Draft they are assigned. Changes to the source text and timing sit with the PM, and exactly what translators can change will be settled before the pilot.
Can I use it now?
Not yet. The public service hasn’t launched, and we will share the schedule and terms as soon as they are set.
Are the screens on this site the real product?
The editor screen is an illustration based on the layout of the MobySlap Local editor, and the video and subtitles are for demonstration. The Cloud editor is being built on that same editing experience.
How are Local and Cloud different?
Local stays as it is today. Cloud is a separate product that handles subtitle production on a server and runs translation and review in the browser. Our in-house spell-check engine is available only in Cloud.
How does the spell-check work?
MobySlap Cloud includes our own latest Korean spell-check engine. It goes through the subtitles line by line, quickly and accurately, and suggests what to fix. The translator decides whether to accept each suggestion.
Can several people edit at the same time?
In the first version, only one person writes in a project at a time. Team members can work on different projects at once, but real-time co-editing and automatic merging within one project are not part of the first version.
It helps us reply if you include
- Running time and number of titles or episodes
- Genre (drama, reality, documentary and so on)
- Team size and roles
- Your preferred schedule