I've been running the same benchmark on every new major coding model: recreating a Nord Stage 4 🎹 in the browser from one detailed photo, a 76-page manual, and several JSON specs. Here's the latest generation. Guess who takes the crown 👑

Full benchmark:

Here's the reference photo (it's the 73-key not the 88):

what dsp code did you use and what gui code?

see source:

so cool! building from a manual is crazy

I’ve been doing the same sort of experiment, but with analog modeling: schematics + component data + measurements → working DSP plugin. The results are getting absurdly good. The commercial audio plugin market may be entering its "well, shit" phase.

Hahha nice I had the same idea! I made myself a SP-1200 WIP:

This is great thanks! I've been trying to better model my own synths for a project. Gonna see if there's anything I can learn in this. Thanks for open sourcing.

Looks great! These models are quite good at DSP.

What exactly is your benchmark? Sound quality or interface recreation?

The scores on are computed from a mix of panel fidelity, audio quality, and system completeness, evaluated by the same model (Opus 5). I wouldn't take the scores super seriously though, as this is not a rigorous benchmark and more of a fun side project :)

insaneee

loving the melody. Is AI generated? It sounds like Philip Glass

i’m glad you asked! it’s actually a midi generated by opus 5.5 based on this specific Yuja Wang performance of etude no 6! Yuja plays the piece like 1.5x faster and skips some repeats

Listening to Wang... That´s fantastic, so much time since listening to a Glass work. The emulators are spot on, by the way. Great benchmark!!

If I get it right, it is not coded, just running in the browser?

it’s fully coded using html, css, and js! every key, knob, etc is a <div>

This is crazy man, in a good way 🤯

Wow!

Wow! 😍

ok that is fn awesome. i really really want a nord!

Sort of a weird test without enough information. Why don’t you have it help you dump the ROMs and build a proper plugin so we can all have the Nord Stage 4? Or since you’re so rich you could make a donation to the film preservation work I’m doing instead of making toy pianos.

love that!

do all the controls work?

mostly, yes! here's opus 5.5:

Cool benchmark

🔥🔥🔥

Very cool benchmark!

Crazy

Super interesting idea for a benchmark.

My benchmark is the AKS Synthi 😁

It duplicated the sample content that power the instruments?

hmm it doesn't quite get the same samples as the actual nord, generally open-source instruments like these were used:

a 76-page manual as part of the benchmark is a brutal test.

this is fun! is it doing synthesis or only samples?

synths work too! (not perfect though)

Try gpt6pro in browser

You saved $3K and too many wires.

unfortunately I did not 😆