render-model-comparison-grid

# render-model-comparison-grid Render the 'model comparison grid' format from a config. The signature of this format is a **"Same prompt. N models."** gauntlet: a dark stage where, per beat, a `PROMPT` eyebrow + the (condensed) prompt **fades in** centered in monospace and holds readable ~0.8s, then docks to a small top strip while a **grid of 2-4 labeled panels** staggers in (0.15s apart) and holds for side-by-side comparison. A persistent model/variant label sits under each panel; column order is identical on every beat. Ends on a minimal end card (headline + column names only — **no meta-stats line**). The grid is **media-agnostic per cell**: any cell is a static image or a **muted video clip** (i2v outputs, screen recordings), mixable within one beat. Video cells loop during the hold and are **frame-seeked deterministically** (the renderer awaits each seek), so the render never depends on wall-clock playback timing. The renderer itself is FREE/deterministic (Playwright frame-step + FFmpeg). The paid inputs are separate capabilities: the cell **images** come from `create-image-fal`, the cell **clips** from `create-video-fal`, and the **music bed** from `create-music-elevenlabs`. Prompt text and labels are real DOM — never AI-rendered. Default shape: 5 beats × 4.5s + 2.5s end card = 25.0s @ 1280×720/30fps, all configurable from one `config.json`. ## Run build_composition.py --config config.json --output hyperframe.html ; render_seekable_hyperframe.py hyperframe.html ma...