PyMC's MixLab runs full Bayesian MMM in-browser: 1,000 draws in 7.8s on M3, zero server uploads

twiecki · x · 2026-09-16

PyMC Labs released MixLab, which runs a full Bayesian Marketing Mix Model entirely in the browser — no server uploads and no Python setup. It is powered by PyMC plus nuts-rs-wasm (a WebAssembly port of the NUTS sampler), completing 1,000 posterior draws in 7.8 seconds on an M3 MacBook. Available to try live on their site.

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