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LibraVDB/switchboard-video-v1

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switchboard-video-v1

8-classifier pipeline for video generation prompt routing. Each model classifies one dimension of a video generation request: length, complexity, style, quality, camera movement, physics, reference modality, and cost tier.

Architecture

These models power switchboard, a zero-alloc AI proxy engine that classifies incoming prompts and routes them to the cheapest capable video generation provider.

POST /v1/chat/completions
  → extract user message
  → 8-classifier pipeline (~2ms)
  → logic-based routing rules
  → upstream provider (runway, openai, kling, stability)

Models

Model	Dimension	Labels	Size
`length.bin`	Duration	short, medium, long, multi_stage	51 MB
`complexity.bin`	Scene complexity	simple, multisubject, multistage	51 MB
`style.bin`	Visual style	photorealistic, cinematic, animation, 3d, motion_graphics	51 MB
`quality.bin`	Resolution / fidelity	basic, 4k, 8k, production-grade	51 MB
`camera.bin`	Camera movement	static, dolly, tracking, orbital, fpv	51 MB
`physics.bin`	Physical simulation	none, basic, particle, fluid, cloth	51 MB
`refs.bin`	Reference modality	none, image, video, audio, multi	51 MB
`cost.bin`	Cost tier	cheap, medium, expensive	51 MB

Training

# Clone the switchboard repo
git clone https://github.com/xDarkicex/switchboard
cd switchboard

# Generate training data
./switchboard synth \
  --preset ./presets/video/synth.yaml \
  --real ./presets/video/real_prompts.yaml \
  --per-intent 1500 --output ./presets/video/training.txt

# Train all 8 models
go run ./scripts/train-pipeline

Training data: 42,731 examples (231 human-annotated + 5,000 auto-tagged + 37,500 synthetic). 42,731 examples × 8 labels = 341,848 multi-label training lines.

Inference

import "github.com/xDarkicex/switchboard/internal/operator"

cfg := operator.PipelineConfig{
    Style: operator.PipelineSlot{
        ModelPath: "models/style.bin",
        DefaultVal: "cinematic",
        Labels: []string{"cinematic", "photorealistic", "animation", "3d", "motion_graphics"},
    },
    // ... 7 more dimensions
}
pipeline, _ := operator.NewPipeline(cfg)
defer pipeline.Close()

tags, _ := pipeline.Classify("Make a cinematic video of a dragon")
// tags.Style = "cinematic"
// tags.Length = "medium"
// tags.Cost = "medium"

License

MIT — same as switchboard.

Citation

bibtex

@software{switchboard2026,
  author = {xDarkicex},
  title = {switchboard-video-v1: 8-classifier pipeline for video generation routing},
  year = {2026},
  url = {https://huggingface.co/LibraVDB/switchboard-video-v1}
}