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Technical deep-dive

How VeoStudio works.

The models, the running order and the reasons behind it. Six stages take a paragraph of description to a finished film, and each one hands a real artefact to the next.

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The pipeline

Six stages, one film.

Every stage produces something you can look at and change before the next one runs. Nothing is a black box, and the expensive step is always the last one.

End to end

Stages
6
Scenes
Up to 99
Shot
8s, audio included
Scene
Up to 148s
Export
720p or 1080p MP4
  1. 01

    AI script writer

    The AI Director

    Structured, multi-scene scripts with precise control over every beat.

    • Up to 99 scenes per project
    • Each scene carries prompt, camera work, lighting and timeline
    • Automatic scene continuity tracking
    • Character placement and action
    • Dialogue and narration
    Cost
    Included with the Pro plan ($25/month)
    Output
    Structured JSON with complete scene descriptions
  2. 02

    Character generation

    Nano Banana 2 Lite, 2 or Pro

    Consistent characters, generated cheap or photorealistic depending on the job.

    • Nano Banana 2 Lite: 1 token per image, for cheap iterations
    • Nano Banana 2: 2 tokens per image, the standard cast shot
    • Nano Banana Pro: 4 tokens per image, photorealistic and cinematic
    • Character IDs for project-wide reuse
    • Facial feature consistency across scenes
    Cost
    1–4 tokens per image
    Output
    High-resolution character images with unique IDs
  3. 03

    Frame generation

    Nano Banana 2 Lite, 2 or Pro (text + image → image)

    The first and last frame of every scene, drawn before anything is filmed.

    • The AI describes the opening and closing shot
    • Nano Banana generates the frame images
    • Character images injected as references
    • Scene composition preview
    • Continuity validated before video generation
    Cost
    1–4 tokens per image
    Output
    First frame + last frame images per scene
  4. 04

    Veo 3.1 video generation

    Google Veo 3.1 (Draft / Fast / Quality)

    Eight-second clips with synchronised audio already in them.

    • Draft mode: 12 tokens per 8s clip, 720p, on every plan
    • Fast mode: 30 tokens per 8s clip, rendered in parallel
    • Quality mode: 80 tokens per 8s clip, 1080p, Pro only
    • First frame used as the conditioning image
    • Last frame used for scene continuity (Draft and Quality)
    • Synchronised audio generated automatically
    Cost
    Draft: 12, Fast: 30, Quality: 80 tokens/clip
    Output
    8-second Veo 3.1 video with audio, 720p or 1080p
  5. 05

    Continuity system

    Text + image continuity

    What keeps the visual and narrative flow intact between scenes.

    • Text continuity: closingAction → openingAction
    • Image continuity: previous last frame → next first frame
    • Character tracking across scenes
    • Automatic scene-to-scene transitions
    • Timeline synchronisation
    Cost
    Free, and automatic
    Output
    Seamless scene transitions
  6. 06

    Movie maker

    Drag-and-drop timeline

    Clips stitched into a full movie of any length, ready to hand over.

    • Drag-and-drop interface
    • Trim and reorder clips
    • Preview full sequences
    • Export in multiple formats
    • Commercial licensing included
    Cost
    Free, no export fees
    Output
    Complete video files ready for distribution

Technical specifications

The whole spec sheet, on one page.

AI models used

The AI Director
Script and scene planning
Nano Banana 2 Lite
Cheap character and frame stills
Nano Banana 2
Standard character and frame stills
Nano Banana Pro
Photorealistic, cinematic stills
Google Veo 3.1
Video, in three modes

Video specifications

Resolution
720p, or 1080p on Quality
Aspect ratios
16:9 or 9:16 for films
Duration
8 seconds per clip
Audio
Generated automatically
Format
MP4

Limits and constraints

Scenes per project
99 max
Clip duration
8s, to 148s per scene
Character consistency
Via Nano Banana
Token top-ups
Any time
AI script writing
Included

A clip is eight seconds because that is the native Veo 3.1 shot. Continuity frames are what stretch a single scene to 148 seconds, and a production holds up to 99 shots stitched into one film. The extended scene is 720p, not 1080p — the reason, and the choice it forces, are set out in our guide to AI video longer than 8 seconds.

Why this architecture

Built in stages on purpose.

One model doing everything would be simpler to explain and worse to use. Splitting the pipeline is what makes the cheap steps cheap and the expensive step optional.

The trade

Planning
Free
Stills
1–4 tokens
Video
12–80 tokens
Re-render
Per scene

Best model for each task

The AI Director handles script writing. Nano Banana Pro delivers cinematic images. Veo 3.1 is the state-of-the-art video generator, in three modes. No single model is asked to do all three.

Cost optimisation

Script writing is included with the subscription. Images cost 1–4 tokens, so you preview cheaply before spending tokens on video.

Quality control

Preview frames before generating expensive video. Problems get caught early in the pipeline, on the cheap step.

Maximum flexibility

Full control at every stage: adjust the script, regenerate frames, choose Draft, Fast or Quality mode per scene.

Ready to try it

Run the pipeline yourself.

The 7-day trial starts you with 50 tokens, which is enough to write a production, cast it, draw the frames and film it in Draft, where a shot costs 12 tokens.

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7-day trial · 50 tokens · no credit card