Xing 4.0 vs Muse Spark Open
Xing 4.0 took 25 min 32 s and was free at list price, Muse Spark Open took 9 min 1 s and $0.25 at list price. Xing 4.0 took 2.8× as long.
Xing 4.0
XingChen · free route
Muse Spark Open
Meta · $4.25/M out · 1,383 HN pts
Pelican
Generate an SVG of a pelican riding a bicycle
Watch
Draw a mechanical wristwatch that shows the current local time, with a sweeping seconds hand and a date window. Make it look expensive.
Landing
Build the landing page for Lumen Cycles, a Copenhagen workshop that builds custom cargo bikes to order. Make it look like a real brand you would trust with 4,000 euros.
Breakout
Make a Breakout game I can play right now with the keyboard or the mouse. Give it several levels, a score and some juice.
About
Write the opening of the About us page for Patchbay, a three-person studio in Rotterdam that repairs vintage synthesizers. About 150 words.
Patchbay is a compact, three-person workshop rooted in the dynamic streets of Rotterdam, born from a shared reverence for analog sound. Our team shares an unwavering dedication to vintage synthesizers, viewing each oscillator, filter, and routing cable as a vital piece of sonic history waiting to be restored. Whether diagnosing a failing voltage regulator or carefully retrofitting obsolete components, we take immense pride in bringing classic instruments back to their full potential. In our studio, repairing isn't just a technical service—it is a shared passion among friends who believe the past deserves to keep playing. We meticulously diagnose and revive legacy synths, ensuring the iconic sounds of yesterday continue shaping today’s electronic music. Bring us your dented, broken machines, and let us help you reconnect them with the rich, unmistakable sounds they were always meant to make. Every patch, every knob, every fleeting tone depends on the work we do here.
Patchbay is a small studio in Rotterdam where vintage synthesizers come back to life. We are three technicians, musicians and longtime collectors who have spent the last decade trading schematics, hunting spare parts, and learning the quirks of every oscillator and filter that has passed through our hands.
What started as helping friends keep their Junos and ARPs in tune has grown into a dedicated workshop in the north of the city. We repair, restore and service instruments from the sixties to the early nineties, from well-known classics to rare prototypes that barely left the factory.
We believe these machines are more than equipment. They carry histories, imperfections and sounds that cannot be replaced. Our job is to respect that character while making sure each instrument is reliable, playable, and ready for another lifetime of music.
Specs and numbers
| Xing 4.0 | Muse Spark Open | |
|---|---|---|
| Maker | XingChen | Meta |
| Made in | China | US |
| Released | 16 Oct 2026 | 15 Oct 2026 |
| Price in, per M tokens | free route (list $0/M) | $1.25 |
| Price out, per M tokens | free route (list $0/M) | $4.25 |
| Context | 262,144 tokens | 1,048,576 tokens |
| Weights | open | open |
| Hacker News points | — | 1,383 |
| Time for the five prompts | 25 min 32 s | 9 min 1 s |
| List price of the five prompts | free | $0.25 |
Xing 4.0 was free at list price; Muse Spark Open cost $0.25. Muse Spark Open was faster: 16 min 31 s less in total, and faster on 4 of the 5 prompts.
In the recording, both Breakout games play. Xing 4.0's landing page showed a blank first frame when the still was taken. Xing 4.0 has no logo: doesn’t draw (an SVG file without the SVG namespace, which browsers draw as an empty box).
Rebuild this screen experiment: Muse Spark Open's rebuild matched the screenshot at 53%; Xing 4.0 was not in it. Tea Garden experiment: Muse Spark Open's game passed 5 of 5 checks; Xing 4.0 was not in it.





