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Local Lab

A desktop playground for comparing local AI models on Apple Silicon side by side: image, video, music and text.

Source on GitHub
Built
2026
For
Laratta Labs
Status
Open source
Stack
Electron, Svelte, TypeScript, Python, MLX

Write one prompt, run it across several models, and look at the results side by side. Image, video, music and text each get their own section, and adding a model is a declarative entry in a registry, with no UI work.

Why a desktop app. These models are 14–41 GB apiece and live in separate Python virtualenvs. The app is a thin supervisor around them: it spawns each model's own interpreter with the right environment, streams the output back, and shows you the result. Nothing is reimplemented and no weights are bundled.

It runs offline by default, so a missing model fails fast with instructions instead of starting a multi-gigabyte download mid-run.