Mimi in the browser — can it keep up?

A frame is 80 ms, so to listen in real time the encoder has to finish one in less than that — and it has to do it without taking the main thread with it, which is why it runs in a worker. Everything is served from this tree.

checking for threads…

Encode — listening

frames timed: —
median: —
p90: —
real-time factor: —

Is the main thread still free?

animation, idle: —
animation, while encoding: —
longest stall: —
frames dropped by the codec: —

What came out

codebooks: —
frames for 1s: —
backend: —

not run

idle

Credit. Mimi is Kyutai's codec (CC-BY-4.0). What runs here is a third-party ONNX conversion and int8 quantisation, onnx-community/kyutai-mimi-ONNX, pinned to revision 992dd4d5 and verified against recorded SHA-256s — a Hub branch is mutable, so the pin is what makes this reproducible. It runs under transformers.js 3.4.0, vendored and hash-pinned rather than fetched from a CDN at load.